Person

Ptolemy II Philadelphus

309–246 BCE · 3rd century BCE

Ptolemy II Philadelphus was king of Egypt from 283 to 246 BCE, born on Kos. He expanded the Library and Museum of Alexandria and extended Ptolemaic power through the Aegean, where the Nesiotic League honoured him, and on Cyprus, where he refounded Marion as Arsinoe. He eventually made peace with his half-brother Magas of Cyrene.

Ptolemy II Philadelphus
Image: CC BY 2.5 · Wikimedia Commons

Mentioned in 1 profile

Ptolemaic EmpireFoundation, Summary

Mentioned in 4 state histories

Kingdom of MarionKosNesiotic LeagueKingdom of Cyrene under Magas

See also

Cite this entry
APA
The Epoch Institute. (2026). Ptolemy II Philadelphus. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/ptolemy-ii-philadelphus
MLA
“Ptolemy II Philadelphus.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/ptolemy-ii-philadelphus. Accessed .
Chicago
The Epoch Institute. “Ptolemy II Philadelphus.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/ptolemy-ii-philadelphus.
Harvard
The Epoch Institute (2026) ‘Ptolemy II Philadelphus’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/ptolemy-ii-philadelphus (Accessed: ).

Last reviewed October 2026Random entry ↻