Editing Arsinoe II (section)

===Queen of Ptolemy Keraunos===
In 281 BC, Lysimachus died in battle and Arsinoë fled to [[Cassandreia]] ({{lang|grc|Κασσάνδρεια}}). There, she married her paternal half-brother [[Ptolemy Keraunos]]. Ptolemy Keraunos was a son of Ptolemy I Soter and his first wife, [[Eurydice of Egypt]]. The marriage was for political reasons: both claimed the throne of Macedonia and Thrace (by the time of his death Lysimachus was ruler of both regions, and his power extended to southern Greece and [[Anatolia]]). Their relationship was never good.

As Ptolemy Keraunos was becoming more powerful, Arsinoë decided it was time to stop him and conspired against him with her sons. This action caused Ptolemy Keraunus to kill two of her sons, Lysimachus and Philip, while the eldest, Ptolemy, was able to escape and to flee north, to the kingdom of the Dardanians.

Arsinoë sought refuge in the Samothrace temple complex, which she had benefited during her tenure as queen.{{sfn|Carney|2013|p=60-63}} She eventually left from Samothrace for Alexandria, Egypt, to seek protection from her brother, [[Ptolemy II Philadelphus]].{{sfn|Carney|2013|p=66}}

It is not known which year she left for Egypt. She may have left as early as 280/279 BC, directly after the murder of the younger sons, or as late as 277/276 BC, when the claim of her eldest son to the Macedonian throne had clearly failed, following the succession of [[Antigonus II Gonatas]].{{sfn|Carney|2013|p=
[https://books.google.co.kr/books?id=6wNREAAAQBAJ&pg=PA63 63]}}