Lagus of Eordaia was a Macedonian courtier and the father of Ptolemy, the founder of the Ptolemaic dynasty. Wikipedia
Parents: Thaïs
Children: Ptolemy I Soter and Menelaus
Partner: Arsinoe of Macedon
Great grandchildren: Ptolemy III Euergetes, Berenice Syra, Ptolemy Epigonos, and more
Died: 4th c. BC
Grandchildren: Ptolemy II Philadelphus, Arsinoe II, Ptolemy Ceraunus, and more
Greek: Λάγος