Persian king list

The Roman Claudius Ptolemy (90–168) was an astronomer in Egypt. It is his chronology that is frequently followed for the period of the Persians and the number of Persian kings. There are however other king lists that disagree with him

Ptolemy c. 100 AD, Egypt

• Cyrus (reign length 9 years)
• Cambyses (8)
• Darius I (36)
• Xerxes (21)
• Artaxerxes I (41)
• Darius II (19)
• Artaxerxes II (46)
• Ochus (21)
• Arogus (2)
• Darius III (4) (final king)

Conquest by Alexander the Great

Firdausi c. 1000 AD, Persian

• [Cyrus]
• [Cambyses]
• Darius I
• Artaxerxes Longimanus
• Queen Homai, mother of Darius II
• Darius II
• Darius III

Conquest

Seder Olam c. 160 AD, finalised c. 800AD, Jewish

• Cyrus
• Cambyses
• Darius

Josephus c. 70 AD, Jewish

• Cyrus
• Cambyses
• Darius
• Xerxes
• Artaxerxes
• Darius II

Conquest