The youngest child
Ptolemy Philadelphus was Antony and Cleopatra’s youngest child. In 34 BCE the Donations of Alexandria associated him with Syria, Phoenicia, and Cilicia as part of his parents’ eastern dynastic settlement.
After Alexandria
He was taken to Rome and entrusted to Octavia Minor after the deaths of his parents. Like Alexander Helios, he then disappears from the surviving record; a precise death date cannot be established.
Historical sources
Plutarch, Life of Antony 54; 87
The Donations of Alexandria and the children in Octavia’s care.
Cassius Dio, Roman History 49.41; 51.21
The eastern titles and the triumphal aftermath.