How did Cambyses II conquer Egypt and add it to the Achaemenid empire, why do the Greek and Egyptian sources give such different portraits of his rule there, and how did his death in 522 BC produce the succession crisis that brought Darius I to power?
Cambyses II and the conquest of Egypt: the campaign and the Battle of Pelusium 525 BC, the defeat of Psamtik III and the establishment of Egypt as the 27th Dynasty and a Persian satrapy; the clash between the hostile Greek and Egyptian tradition in Herodotus Book 3 (the killing of the Apis bull, madness and sacrilege) and the contemporary Egyptian evidence of the Udjahorresnet statue; the death of Cambyses in 522 BC and the succession crisis of the false Smerdis, Gaumata and Bardiya that opened the way for Darius I
Cambyses II conquered Egypt at Pelusium in 525 BC, defeating Psamtik III and making it the 27th Dynasty. The sources clash. Herodotus paints a mad, sacrilegious king while the Udjahorresnet statue shows Cambyses respecting Egyptian forms. His death in 522 BC and the false Smerdis crisis opened the way for Darius I.
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What this dot point is asking
This slice of the Persia period runs from the accession of Cambyses II in 530 BC to the succession crisis of 522 BC. It asks you to do three things. First, narrate and explain the conquest of Egypt: how Cambyses, son of Cyrus, defeated Psamtik III at Pelusium in 525 BC and turned the ancient kingdom of the Nile into the 27th Dynasty and a Persian satrapy. Second, and most importantly for a source subject, weigh a sharp clash of evidence: the hostile Greek and Egyptian tradition in Herodotus Book 3, which paints Cambyses as a mad, sacrilegious tyrant who stabbed the Apis bull, against the contemporary Egyptian evidence, above all the Udjahorresnet statue, which shows him governing as a proper pharaoh. Third, explain the confused end of the reign: Cambyses' death in 522 BC and the succession crisis of the "false Smerdis" (Gaumata, the false Bardiya) that opened the throne to Darius I. Above all it asks you to treat the reputation of Cambyses as a problem in source reliability, not a settled fact.
The answer
The conquest of Egypt: Pelusium, 525 BC
Cambyses II (r. 530 to 522 BC) succeeded his father Cyrus the Great, who died on campaign in 530 BC. Cyrus had built the empire and taken Babylon (539 BC); Egypt, the last great independent kingdom of the Near East, was the obvious next target and the completion of his father's work. In 525 BC Cambyses invaded, crossing the waterless Sinai with the help of Arab allies who supplied water, and backed by a fleet and by Phoenician and Greek naval contingents. He defeated the army of the pharaoh Psamtik III at Pelusium, in the eastern Nile Delta, and then took the capital Memphis.
The defeat ended the 26th (Saite) Dynasty. Psamtik III was captured and, according to Herodotus, later executed for plotting revolt. Egypt now became the 27th Dynasty in the Egyptian king-lists, the First Persian Period, and a satrapy of the Achaemenid empire, with the Persian king ruling as pharaoh. This was a strategic transformation: Persia now controlled the Nile, the wealth of Egypt and the eastern Mediterranean seaboard. Cambyses followed the conquest with further campaigns south and west, an expedition up the Nile against Nubia (Kush) and an army sent across the desert to the oracle of Ammon at Siwa; Herodotus reports both as costly failures, and a planned attack on Carthage was abandoned when the Phoenician crews refused to sail against their own kin.
The hostile tradition: Cambyses in Herodotus Book 3
The reason Cambyses matters so much for source study is that his reputation in the surviving narrative is catastrophic, and probably unfair. In Herodotus Book 3, written some seventy years after the events, Cambyses becomes the archetype of the tyrant driven mad. Herodotus reports that on returning to Memphis he stabbed the sacred Apis bull (a calf worshipped as a god) in the thigh, mocked its priests, opened ancient tombs to inspect the dead, ridiculed the images of Egyptian gods, and even burned the mummified body of Amasis, the previous pharaoh. He is also made to murder his own brother and his sister-wife. Herodotus frames all of this within a Greek moral pattern: the proud king who violates the sacred is punished, and Cambyses' later misfortunes and death are presented as divine retribution.
Read critically, this is a construction, not a transcript. Herodotus is a Greek writing long after the event and drawing on Egyptian oral informants, and there is a strong reason those informants were hostile: a Demotic papyrus records that Cambyses reduced the revenues that the Saite kings had granted to Egyptian temples. A king who cut the priests' incomes is exactly the sort of ruler the priesthood would later blacken. The "madness" is therefore best understood as a literary and priestly tradition of grievance, hardened into a moralising Greek narrative, rather than sober reporting.
The Egyptian counter-evidence: the Udjahorresnet statue
Against Herodotus stands contemporary Egyptian evidence, and it points the other way. The key document is the biographical inscription on the naophorous statue of Udjahorresnet, a senior Egyptian priest and naval commander who had served the last Saite pharaohs and then continued under Persian rule. In his own account, Udjahorresnet composed an Egyptian royal titulary for Cambyses, presenting him as a legitimate pharaoh; he says the king, at his request, ordered foreigners expelled from the temple of the goddess Neith at Sais, restored its offerings and revenues, and performed the proper duties of a "beneficent king." This is a king working with the Egyptian elite and through Egyptian religious institutions, not a rampaging desecrator.
Two further points strengthen the counter-case. First, the surviving Apis burial record indicates that an Apis bull was interred with full ceremonial honours during Cambyses' reign, which is very hard to square with Herodotus' claim that he killed the Apis in a fit of madness. Second, adopting a pharaonic titulary and maintaining major cults was simply how the Achaemenid empire governed: Persian kings ruled Babylon as Babylonian kings and Egypt as pharaohs, working through local elites like Udjahorresnet rather than against them. The Egyptian evidence thus fits the administrative logic of the empire, while the "madman" does not.
None of this makes Cambyses gentle. The temple-revenue cuts show a hard-headed conqueror squeezing Egypt's wealth, and it is precisely that policy which explains the priestly hostility Herodotus later inherited. The balanced verdict is a pragmatic imperial ruler, neither Herodotus' lunatic nor a model of piety.
The death of Cambyses and the succession crisis, 522 BC
The end of the reign is as contested as the Egyptian years. According to Darius' own Behistun inscription and to Herodotus, Cambyses had, before the crisis, secretly killed his younger brother Bardiya (the Greeks call him Smerdis), and the death was concealed from the people. In the spring of 522 BC, while Cambyses was still in the west, a man seized the throne in Persia claiming to be Bardiya. Behistun identifies him as Gaumata, a Magian impostor, the "false Smerdis" of the Greek tradition; he secured wide support by remitting taxes and military service for three years.
Cambyses died in the summer of 522 BC in Syria, while hurrying home to crush the revolt. Herodotus reports an accidental, or self-inflicted, wound to the thigh which turned gangrenous; Behistun says only that he "died his own death," a deliberately vague phrase. In September 522 BC, Darius, a member of the wider Achaemenid line, joined with six other Persian nobles, killed Gaumata and took the throne as Darius I. His accession was immediately followed by a wave of revolts across the empire, from Babylon to Media and beyond, which he suppressed over the following year and recorded in detail on the great trilingual relief and inscription at Behistun.
Here too the sources demand caution. Behistun is the winner's version, carved to legitimise a violent seizure of power. Its claims that the real Bardiya was already secretly dead, that the man Darius overthrew was therefore a mere impostor, and that Cambyses conveniently "died his own death," are exactly what Darius needed to be believed. Some modern historians have suspected that the man Darius killed may have been the genuine Bardiya, and that the "false Smerdis" was invented to turn a usurpation into a restoration. Whether or not that is right, the episode is the hinge of the period: it ends the direct line of Cyrus and brings to power Darius I, the great organiser of the empire, and the theme of legitimacy runs straight on into his reign.
How to read a source on this topic
Section IV sources for this period typically describe (never reproduce verbatim) a passage of Greek narrative, an extract in the style of an Egyptian biographical inscription, or a line in the manner of a royal inscription such as Behistun. Three reading habits.
First, identify the tradition and type. Is it Greek literary (Herodotus, later hostile, moralising), Egyptian and contemporary (the Udjahorresnet statue, an Apis stela), or Persian royal (a Behistun-type inscription, official and ideological)? Each carries a different limitation, and stating which one you are looking at usually decides reliability.
Second, fix who produced the source, when, and for whom. A line of Herodotus Book 3 is a later Greek reconstruction drawing on resentful Egyptian priests; the Udjahorresnet statue is a contemporary self-presentation by a collaborating official; Behistun is a contemporary royal proclamation by the man whose legitimacy is in question. Purpose is everything: Udjahorresnet wanted to look loyal and pious, Darius wanted to look legitimate.
Third, always move from content to reliability to usefulness to perspective, and reach a judgement, rather than retelling what the source says. On this dot point the decisive move is almost always to set the hostile Greek narrative against the contemporary Egyptian or Persian record and say which you trust, and why.
Historians and the evidence base
Herodotus is the ancient source under examination: his Histories Book 3 gives the fullest narrative of Cambyses in Egypt but is a later, hostile, moralising Greek account and must be read as the tradition to be tested, not as neutral fact.
Pierre Briant, author of the standard modern history From Cyrus to Alexander, argues that Cambyses must be reconstructed from the Egyptian and administrative evidence rather than through the distorting Greek tradition, and treats the "madness" as later hostile propaganda.
Alan Lloyd, an Egyptologist and commentator on Herodotus, links the hostile portrait to the resentment of the Egyptian priesthood, whose temple revenues Cambyses reduced, so that the tradition Herodotus inherited was already a grievance.
Amelie Kuhrt, whose sourcebook assembles the non-Greek evidence, stresses weighing the Egyptian and Persian material against the Greek narrative and reading royal texts such as the Behistun inscription as ideology rather than transparent record.
Practice questions
Original practice questions graded from foundation to exam level, each with a full worked solution. Try them before revealing the solution.
foundation3 marksSource A: an owned reconstruction, in the style of the biographical inscription on the naophorous statue of Udjahorresnet, records that the great chief of the foreign lands, Cambyses, came to Egypt, that Udjahorresnet composed for him a royal titulary in the Egyptian manner, that the king ordered foreigners expelled from the temple of the goddess at Sais and its offerings restored, and that His Majesty did every good thing in that temple as every beneficent king had done. Using Source A, describe what this type of inscription suggests about Cambyses' rule in Egypt.Show worked solution →
A 3-mark "describe" needs a clear reading of the source plus supporting detail.
- What the inscription shows
- Source A shows Cambyses taking an Egyptian royal titulary, expelling foreigners from the temple of Neith at Sais, restoring its offerings and acting as a "beneficent king" in the Egyptian manner (1 mark).
- What it suggests
- It presents Cambyses not as a foreign destroyer but as a legitimate pharaoh who governed through Egyptian forms and respected at least one major cult, working with a senior Egyptian official (1 mark).
- Supporting detail
- Udjahorresnet was a real Egyptian priest and naval officer who had served the last Saite kings and then Cambyses; his statue is a contemporary Egyptian source that directly counters the later Greek image of Cambyses as a sacrilegious madman (1 mark).
Marker's note: markers reward reading the inscription as evidence of legitimising royal self-presentation, and noting it is contemporary Egyptian testimony, not just listing what the king did.
foundation4 marksOutline how Cambyses II conquered Egypt and incorporated it into the Achaemenid empire.Show worked solution →
A 4-mark "outline" needs the campaign, the decisive event and the outcome.
- Background and advance
- Cambyses II (r. 530 to 522 BC), son of Cyrus the Great, invaded Egypt in 525 BC, crossing the Sinai with Arab help for water and supported by a fleet and by Greek and Phoenician allies (1 mark).
- The Battle of Pelusium
- He defeated the Egyptian army under the pharaoh Psamtik III at Pelusium, in the eastern Nile Delta, in 525 BC, then took the capital Memphis (1 mark).
- The fall of the Saite dynasty
- Psamtik III, the last king of the 26th (Saite) Dynasty, was captured and later executed for plotting revolt, ending native rule (1 mark).
- Egypt as a satrapy
- Egypt became the 27th Dynasty in the Egyptian king-lists and a Persian satrapy, the First Persian Period, with Cambyses ruling as pharaoh; Persia now controlled the Nile and the eastern Mediterranean seaboard (1 mark).
Marker's note: markers reward naming Pelusium 525 BC, Psamtik III and the 27th Dynasty, not a vague statement that Cambyses "took Egypt."
core5 marksSource B: an owned reconstruction, in the manner of the Greek narrative tradition, relates that the king, in a fit of madness, stabbed the sacred Apis calf in the thigh, mocked the temples and priests of Egypt, opened ancient tombs to examine the dead, and burned the body of a former pharaoh, so that the Egyptians said his crimes were punished by the gods. Using Source B and your own knowledge, assess the reliability of this tradition as evidence for Cambyses in Egypt.Show worked solution →
A 5-mark "assess reliability" needs content, the case for and against, and a judgement.
- Content
- Source B presents Cambyses as a sacrilegious madman who wounded the Apis bull, mocked Egyptian religion, violated tombs and burned a royal mummy, and reads his later misfortunes as divine punishment (1 mark).
- Origin and bias
- This is the tradition preserved in Herodotus Book 3, written some seventy years later by a Greek drawing on Egyptian informants, very likely priestly circles hostile to a king who, on the evidence of a Demotic papyrus, cut temple revenues. It follows a Greek moral pattern of hubris and retribution (2 marks).
- Contemporary counter-evidence
- Contemporary Egyptian evidence points the other way: the Udjahorresnet statue shows Cambyses adopting Egyptian royal forms and honouring the temple at Sais, and the surviving Apis burial record indicates that an Apis bull was buried with proper honours under Cambyses, contradicting the claim that he killed it (1 mark).
- Judgement
- The tradition is unreliable as literal fact and is best read as later hostile propaganda; it is useful only as evidence for how resentful Egyptian priests, and the Greeks after them, chose to remember Persian rule (1 mark).
Marker's note: markers reward setting the hostile literary tradition against the contemporary Egyptian evidence and reaching a judgement, not retelling the "madness" story.
core6 marksExplain the succession crisis of 522 BC and how it brought Darius I to power.Show worked solution →
A 6-mark "explain" needs the sequence of the crisis and why it let Darius take the throne.
- The hidden murder
- According to the official version in Darius' Behistun inscription, and in Herodotus, Cambyses had secretly killed his own brother Bardiya (called Smerdis by the Greeks) before or during the Egyptian campaign, and the killing was concealed (2 marks).
- The usurper
- In 522 BC, while Cambyses was still in Egypt, a man seized the throne claiming to be Bardiya. Behistun names him as Gaumata, a Magian impostor pretending to be the dead prince; Greek writers call him the "false Smerdis." He won support by remitting taxes and military service (2 marks).
- The death of Cambyses and Darius' coup
- Cambyses died in 522 BC in Syria while hurrying home to deal with the revolt. In September 522 BC Darius, a member of the wider Achaemenid house, and six fellow conspirators killed Gaumata, and Darius took the throne, then crushed a wave of further revolts recorded on Behistun (2 marks).
Marker's note: markers reward the causal chain from the hidden murder to Gaumata's usurpation to Darius' seizure of power, with the 522 BC date, not a list of names.
core6 marksExplain why many historians reject Herodotus' portrait of Cambyses as a mad and sacrilegious ruler in Egypt.Show worked solution →
A 6-mark "explain" needs the grounds for rejecting the portrait, each tied to evidence.
- The nature of the source
- Herodotus wrote in Book 3 around seventy years after the events, as a Greek relying on Egyptian oral informants, and shaped his account with a Greek moral pattern in which the proud king is punished by the gods; the "madness" motif is a literary device as much as a report (2 marks).
- Hostile Egyptian informants
- A Demotic papyrus records that Cambyses reduced the revenues granted to Egyptian temples. This gives a concrete motive for the priesthood to remember him as an impious tyrant, so the tradition Herodotus received was already hostile (2 marks).
- Contemporary evidence to the contrary
- The Udjahorresnet statue shows Cambyses taking Egyptian titulary and restoring the temple of Neith at Sais, and the Apis burial record indicates an Apis bull was interred with full honours under Cambyses, directly contradicting the story that he stabbed it. Historians such as Briant and Lloyd therefore read the "mad Cambyses" as later propaganda (2 marks).
Marker's note: markers reward using the contemporary Egyptian evidence and a named historian to dismantle the literary portrait, rather than simply asserting Herodotus was biased.
exam8 marksSource C: an owned reconstruction, in the style of a trilingual royal inscription of the Behistin type, proclaims that by the favour of Ahura Mazda the king rules, that a Magian named Gaumata lied to the people, saying he was Bardiya son of Cyrus, that he seized the kingship after Cambyses died his own death, and that the king, with a few men, slew Gaumata and took the kingship that had been taken from his family. Using Source C and your own knowledge, assess the usefulness and reliability of this kind of royal inscription as evidence for the accession of Darius I.Show worked solution →
An 8-mark "assess usefulness and reliability" needs content, usefulness, reliability and a judgement.
- Content
- Source C gives the official account of the accession crisis: Ahura Mazda's favour, Gaumata the Magian usurping under the false identity of Bardiya, the ambiguous statement that Cambyses "died his own death," and Darius' violent seizure of the throne as a restoration to his family (2 marks).
- Usefulness
- This mirrors the Behistun inscription, the one contemporary, dateable, first-person account of 522 BC. It is indispensable: it fixes the sequence of events, names the actors, presents Achaemenid royal ideology (rule by Ahura Mazda, the king as restorer of order against the Lie) and gives the official version against which everything else is measured (2 marks).
- Reliability and limitation
- It is royal propaganda carved by the winner to legitimise a seizure of power. Its convenient claims, that the real Bardiya was already secretly dead, that the ruler Darius overthrew was a mere impostor, and that Cambyses "died his own death," are exactly what a usurper would need to be true. Some historians therefore suspect the man Darius killed may have been the genuine Bardiya, and the impostor story an invention (2 marks).
- Judgement
- The inscription is highly useful as the fixed contemporary framework and as evidence of royal ideology, but unreliable as neutral fact on the very points where Darius' legitimacy is at stake, so it must be read as an interested official version rather than a transparent record (2 marks).
Marker's note: markers reward separating the inscription's value as a contemporary framework from its self-serving purpose, and raising the "was Bardiya really an impostor" problem rather than accepting the text at face value.
exam25 marksTo what extent does the contemporary Egyptian evidence require us to reject Herodotus' portrait of Cambyses and his conquest of Egypt? In your response, refer to relevant sources and historians' interpretations.Show worked solution →
A Band-6 response needs a clear thesis, argument lines tied to specific evidence, engagement with historiography, a model paragraph and a judgement answering "to what extent."
- Thesis
- The contemporary Egyptian evidence requires us to reject the core of Herodotus' portrait, the "mad, sacrilegious" Cambyses, but not the framework of the conquest itself. The campaign, Pelusium and the fall of Psamtik III are broadly sound; the character assassination is later hostile propaganda that the Egyptian sources overturn.
- Argument line 1: the conquest narrative is largely reliable
- Herodotus (Book 3) supplies the only connected account of the invasion: the Sinai crossing, the victory at Pelusium in 525 BC, the capture of Memphis and Psamtik III, and the failed expeditions south to Nubia and to the oracle at Siwa. These structural facts are consistent with the Egyptian record that Egypt became the 27th Dynasty and a satrapy, so here Herodotus is useful.
- Argument line 2: the "madness" is a hostile construction
- The stories of stabbing the Apis bull, mocking the priests and burning a royal mummy follow a Greek moral pattern of hubris punished by the gods, and reach Herodotus through Egyptian informants who had reason to hate Cambyses. A Demotic papyrus records that he cut temple revenues, a concrete motive for priestly hostility.
- Argument line 3: contemporary Egyptian evidence contradicts it
- The Udjahorresnet statue, a contemporary source, shows Cambyses adopting an Egyptian titulary, expelling foreigners from the temple of Neith at Sais and restoring its offerings, behaving as a legitimate pharaoh. The surviving Apis burial record indicates that an Apis bull was interred with full honours under Cambyses, directly contradicting the claim that he killed it.
- Argument line 4: the limits of rejection
- The Egyptian evidence is itself interested, official self-presentation by a collaborating priest and royal monuments, so it cannot simply replace Herodotus with a saintly Cambyses. The temple-revenue cuts show a hard-headed fiscal ruler, which is why the priesthood turned hostile. The truth is a pragmatic conqueror, neither Herodotus' madman nor a model pharaoh.
- Historiography
- Pierre Briant argues that Cambyses must be read from the Egyptian and administrative evidence rather than the Greek tradition, and treats the madness as later propaganda; Alan Lloyd links the hostile tradition to priestly resentment of the revenue cuts; Amelie Kuhrt stresses weighing the non-Greek evidence and reading the royal sources as ideology. Herodotus is the ancient tradition being tested.
- Model paragraph
- The decisive case against Herodotus is the Udjahorresnet statue. Where Herodotus has Cambyses desecrate Egyptian religion, this contemporary inscription has him take a pharaonic titulary, purify the temple of Neith and restore its offerings in the manner of a "beneficent king." As Briant argues, this is the Persian conqueror governing Egypt through its own institutions, exactly what the administrative logic of the empire required, and it exposes the "madman" of Book 3 as a memory shaped by priests whose incomes he had reduced. The statue does not make Cambyses gentle, but it makes the sacrilege story untenable, so the Egyptian evidence forces us to reject the portrait while keeping the conquest.
- Judgement
- To a large extent: the contemporary Egyptian evidence compels rejection of Herodotus' picture of a mad, impious Cambyses, but the campaign narrative survives, so the required verdict is critical rather than wholesale, testing the Greek tradition against the Egyptian record rather than discarding it.
Marker's note: markers reward a sustained argument answering "to what extent," precise use of Egyptian and Greek evidence with dates, named historians used to build the case, and a distinction between the reliable conquest narrative and the discredited character portrait.
