Overview
Demetrius the Fair or the Handsome (, c. 285 BC–249 BC), known in modern ancient historical sources as Demetrius of Cyrene, was a Hellenistic king of Cyrene, who succeeded Magas I.
Family
Demetrius was of Macedonian ancestry. He was surnamed The Fair, because he was an attractive man. He was born and raised in Macedonia. Demetrius was named after his father and was the youngest of the children of King Demetrius I of Macedon and his wife, Ptolemais. Demetrius I married Ptolemais as his fifth wife around 287 BC/286 BC in Miletus, while this was Ptolemais’ first marriage. Demetrius was the only child born into the marriage, as his father died shortly thereafter, in 283 BC. From his father's previous marriages, Demetrius had various paternal half siblings, who included king Antigonus II Gonatas, as well as Stratonice of Syria, princess and later Queen of the Seleucid Empire.
Demetrius’ maternal grandfather was the first Greek-Egyptian pharaoh Ptolemy I Soter. Among his maternal aunts were Queen Arsinoe II of Egypt and among his maternal uncles were Pharaoh Ptolemy II Philadelphus and Macedonian King Ptolemy Keraunos (Keraunos was Ptolemais’ full blooded brother). Pharaoh Ptolemy III Euergetes was a maternal cousin. His paternal grandparents were Macedonian king Antigonus I Monophthalmus and Stratonice, while his paternal uncle was the general Philip.
Cyrenaica
From Wikipedia (CC BY-SA 4.0).