Arsinoe II
| Arsinoe II Philadelphos | |
|---|---|
 | |
| Queen consort of Egypt | |
| Tenure | 275 – 268 BC |
| Queen consort of Thrace and Macedon | |
| Tenure | 300/299 (Thrace) & 288 (Macedon) – 280/279 BC |
| Kings | Lysimachus (until 281 BC) Ptolemy Keraunos (since 281 BC) |
| Born | 316 BC |
| Died | 270 or 268 BCE (aged c. 47) |
| Spouse | Lysimachus Ptolemy Keraunos Ptolemy II Philadelphos |
| Issue | Ptolemy Epigonos Lysimachus (son of Lysimachus) Philip (son of Lysimachus) |
| Dynasty | Ptolemaic |
| Father | Ptolemy I Soter |
| Mother | Berenice I of Egypt |
Arsinoë II (Koine Greek: Ἀρσινόη, c. 316 BC – 270 or 268 BC) was Queen consort of Thrace, Anatolia, and Macedonia by her first and second marriage, to king Lysimachus and king Ptolemy Keraunos respectively, and then Queen of the Ptolemaic Kingdom of Egypt by marriage to her brother, Pharaoh Ptolemy II Philadelphus. As an Egyptian queen she acquired the royal name Arsinoe Philadelphos, as well the title nswt-bjtj ("King of Upper and Lower Egypt") that may suggest she was co-ruler with her husband; the exact meaning of this elevation and whether it occurred during her life or posthumously is uncertain. After her death, Arsinoe was deified at the orders of her husband and the cult of Arsinoe Philadelphos became widespread in the Ptolemaic territories.