Cynane (Greek: Kυνάνη, Kynane or Κύνα, Cyna or Κύννα, Cynna;[1] 357[2] – 323 BC[3]) was half-sister to Alexander the Great, and daughter of Philip II by Audata, an Illyrian princess.
[4][page needed] When her half-brother Philip Arrhidaeus was chosen king in 323 BC, Cynane determined to marry Eurydice to him, and crossed over to Asia accordingly.
[4][page needed] Her influence was probably great, and her project to marry off Eurydice alarmed Perdiccas and Antipater, the former of whom sent his brother Alcetas to meet her on her way and put her to death.
[7] Polyaenus, half a millennium later, in the second century C.E., wrote: Cynane, the daughter of Philip was famous for her military knowledge: she conducted armies, and in the field charged at the head of them.
Upon Alexander’s death, in exclusion of the royal family, his generals parceling out his dominions among themselves, she crossed the Strymon; forcing her way in the face of Antipater, who disputed her passage over it.