Facts and Events
Ptolemy I Soter I (Ptolemaĩos Sōtḗr, i.e. Ptolemy (pronounced ) the Savior), also known as Ptolemy Lagides, c. 367 BC – c. 283 BC, was a Macedonian general under Alexander the Great, who became ruler of Egypt (323–283 BC) and founder of both the Ptolemaic Kingdom and the Ptolemaic Dynasty. In 305/4 BC he demanded the title of pharaoh.
His mother was Arsinoe of Macedon, and, while his father is unknown, ancient sources variously describe him either as the son of Lagus, a Macedonian nobleman, or as an illegitimate son of Philip II of Macedon (which, if true, would have made Ptolemy the half-brother of Alexander), but it is possible that this is a later myth fabricated to glorify the Ptolemaic Dynasty. Ptolemy was one of Alexander's most trusted generals, and was among the seven somatophylakes (bodyguards) attached to his person. He was a few years older than Alexander, and had been his intimate friend since childhood.
He was succeeded by his son Ptolemy II Philadelphus.