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Ptolemy X Alexander I

140 BC – 88 BC

King of Egypt

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About Ptolemy X Alexander I

Lived 140 BC – 88 BC (aged 51–52). Ptolemy X Alexander I was a sovereign.

Background and early life

Ptolemy X, born Alexander, was a member of the Greek Ptolemaic dynasty of Egypt. When King Ptolemy V had died in 180 BC, he had left three children: Ptolemy VI, Cleopatra II, and Ptolemy VIII. All three ruled together from 169 BC until 164 BC, when Ptolemy VIII expelled his brother from power. In 163 BC, he was expelled in turn and forced to withdraw to Cyrene. However, when Ptolemy VI died in 145 BC, Ptolemy VIII was invited back to Egypt to serve as king, marrying his sister Cleopatra II (who had previously been married to Ptolemy VI). The relationship between Ptolemy VIII and Cleopatra II rapidly deteriorated, especially when Ptolemy VIII took Cleopatra III, the daughter of Ptolemy VI and Cleopatra II), as a second wife. The conflict eventually led to a civil war with Cleopatra II on one side and Ptolemy VIII and Cleopatra III on the other (132–126 BC). Ptolemy VIII and Cleopatra III were victorious, but reconciled with Cleopatra II and restored her as co-regent in 124 BC.

Ptolemy VIII and Cleopatra III had two sons and three daughters. The eldest son was Ptolemy IX, who was born around 144–143 BC and became the heir to the throne , during the civil war with Cleopatra II. Their second son, known as Ptolemy X, was born around 140 BC – it is possible that the Horus name that he later assumed indicates that he was born in 140–139 BC. Pausanias implies that Cleopatra III's request to send Ptolemy IX to Cyprus in 117 BC had been intended to get him out of the way in order to enable Ptolemy X's succession. Some historians have found this account plausible. Others have argued that it was invented by Cleopatra III at a later date. At any rate, Cleopatra II, Cleopatra III, and Ptolemy IX became the co-rulers of Egypt. They are listed together (in that order) as co-rulers in surviving papyrus documents from October 116 BC. was Cleopatra III's sister. Her new husband was waging a war against his half-brother Antiochus VIII (r. 125–96 BC), who was married to Cleopatra IV's elder sister Tryphaena. On the way to meet Antiochus IX, Cleopatra IV stopped in Cyprus, where she recruited an army and seized control of the Cypriot fleet, to aid Antiochus IX. Perhaps as a result of this, in 114–113 BC, Alexander proclaimed himself 'King of Cyprus', openly declaring his opposition to Ptolemy IX.

King of Egypt (107–88 BC) Accession Head of Ptolemy X, from Egypt, Ptolemaic period, 2nd century BC. Neues Museum, Germany While this conflict was taking place, Alexander had left Cyprus and sailed to Pelusium. Cleopatra III had him brought to Alexandria and placed on the throne as her new co-regent in September 107 BC. Cleopatra III seems to have dominated the new government even more thoroughly than she had during the reign of Ptolemy IX. Because of the means by which he came to the throne, he was given the derisory nickname Pareisactus (, pareísaktos, "smuggled in"). He assumed the epithet that had previously been borne by his brother, Philometor Soter (Mother-loving Saviour) and took his brother's place in the dynastic cult, in which he and his mother were worshipped as the Theoi Philometores Soteres (Mother-loving Saviour Gods). Cyrene had initially remained under Ptolemy IX's control, but some time after 105 BC and before 100 BC, a third brother, Ptolemy Apion gained control of the region. Justin claims that the territory had originally been left to Apion in Ptolemy VIII's will, but it is not clear whether this was true or a post facto invention.

In 103 BC, the new Hasmonean king of Judaea, Alexander Jannaeus, attacked Ptolemais Akko. Ptolemy IX responded by invading Judaea. Fearing that Ptolemy IX was planning to use Judaea as a springboard for an invasion of Egypt, Cleopatra III and Ptolemy X invaded Judaea themselves. Ptolemy X invaded Phoenicia by sea and then marched inland to Damascus, while Cleopatra III besieged Ptolemais Akko. Ptolemy IX attempted to slip past them and into Egypt, but Ptolemy X managed to rush back and stop him. Ptolemy IX spent the winter encamped at Gaza, before deciding to sail back to Cyprus in early 102 BC.

Around May 88 BC, Alexandrians and the army turned against Ptolemy X and expelled him. Porphyry reports that the rebellion was a result of anger at Ptolemy's friendliness with the Jews. Strabo says that Ptolemy X was expelled because he melted down the golden sarcophagus of Alexander the Great and replaced it with one made of glass. The Alexandrians invited Ptolemy IX to return to Alexandria and retake the throne, which he did. Ptolemy X and Berenice gathered a naval force to recapture the kingdom, but were defeated in battle. Ptolemy X recruited a second force at Myra, invaded Cyprus, and was killed.

In the process of recruiting this final force, Ptolemy X had taken out a loan from the Roman Republic. It seems that providing collateral for this loan involved producing a will, which left Egypt to the Roman Republic in the event of his death without an heir. The Romans chose not to take advantage of this will after Ptolemy's death, but did not outright reject it, either. The possibility of Roman intervention hung over Ptolemy IX for the rest of his reign and forced him to adopt a highly deferential posture with the Romans. They probably had one daughter, Cleopatra V.

NameImageBirthDeathNotesPtolemy XI April 80 BCCo-regent with his stepmother/wife Berenice III for a few days in April 80 BC.Cleopatra V c. 100–95 BC57 BCMarried her cousin Ptolemy XII and co-regent with him from 79–69 BC, co-regent with her daughter Berenice IV 58–57 BC.

Ancestry

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Important facts

Born
140 BC
Birth century
Died
88 BC
Occupation
Positions held
Pharaoh

Family & relationships

Spouse
Berenice III of Egypt
Spouse
Cleopatra Selene I

People in Ptolemy X Alexander I's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Ptolemy X Alexander I's

Frequently asked questions

Who was Ptolemy X Alexander I?

King of Egypt

When was Ptolemy X Alexander I born?

Ptolemy X Alexander I was born in 140 BC.

When did Ptolemy X Alexander I die?

Ptolemy X Alexander I died in 88 BC.

What was Ptolemy X Alexander I's occupation?

Ptolemy X Alexander I was a sovereign.

Sources & further reading

· Wikipedia: Ptolemy X Alexander I

· Wikidata: Q3345

· DBpedia: Ptolemy X Alexander I

Cite this page

APA: Biography.guide. (2026). Ptolemy X Alexander I. https://biography.guide/ptolemy-x-alexander-i/

MLA: "Ptolemy X Alexander I." Biography.guide, https://biography.guide/ptolemy-x-alexander-i/.

Chicago: "Ptolemy X Alexander I." Biography.guide. https://biography.guide/ptolemy-x-alexander-i/.

Data last updated: 2026-09-21 · Spot an error? Report a correction.

Portrait: Wikimedia Commons · author & licence

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