Editing Ptolemy XIII Theos Philopator (section)

=== Co-ruler of Egypt ===
[[File:Portrait of Ptolemy XIII Theos Philopator.jpg|thumb|right|An [[engraving]] by [[Élisabeth Sophie Chéron]], published c. 1736, based on a 1st-century BC medallion.]]
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[[File:Ptolemy XII Auletes Louvre Ma3449.jpg|thumb|180px|Ptolemy XIII's father, [[Ptolemy XII]] ([[Louvre]])]]
[[File:Cleopatra VII, dalla via appia tra ariccia e genzano, 40-30 ac ca. 02.JPG|thumb|180px|
[[Cleopatra VII|Cleopatra]], Ptolemy XIII's sister-wife ([[Altes Museum]])]]
Son of the Egyptian Pharaoh [[Ptolemy XII]] (r. 80–58 BC and 55–51 BC), Ptolemy XIII succeeded his father as [[pharaoh]] of the [[Ptolemaic Kingdom]] in the spring of 51 BC at the age of 11. His father had stipulated that Ptolemy XIII would be married to his older sister [[Cleopatra]] (r. 51–30 BC), with the couple ruling as co-rulers. In October 50 BC, Ptolemy XIII was promoted to senior ruler along with her, although the eunuch [[Pothinus]] acted as [[regent]] for him.<ref>{{Cite web |title=Cassius Dio Cocceianus, Historiae Romanae, book 42, chapter 36, section 1 |url=https://www.perseus.tufts.edu/hopper/text?doc=urn:cts:greekLit:tlg0385.tlg001.perseus-grc1:42.36.1 |access-date=2023-02-20 |website=www.perseus.tufts.edu}}</ref>

In the spring of 48 BC, Ptolemy XIII and Pothinus attempted to depose Cleopatra due to her increasing status as queen. Her face appeared on minted coins, for example, while Ptolemy XIII's name was omitted on official documents. Ptolemy intended to become main ruler, with Pothinus acting as the power behind the throne.