Ptolemy V Epiphanes was the fifth ruler of the Ptolemaic Dynasty. He was the son of Ptolemy IV Philopator and Arsinoe III. He became king after his father's death, when he was only five years old. After his father's death, his mother was eager to become the next regent. Ptolemy IV Philopator's two most powerful ministers, Sosibius and Agathocles had Arsinoe murdered. He was passed from the control of one adviser to another. The Rosetta Stone gives the trilingual inscription of the ceremonies attending the coronation of Ptolemy V Epiphanes. He was married to Cleopatra I. He died at the age of twenty-eight while putting down the last of the insurgents in the Delta. There were rumors that he had been poisoned. He left his wife, who was the daughter of Antiochus, as regent for their young son Ptolemy VI Philomentor.
Source: Egyptian Ministry of Tourism