In Greek mythology, Cleomestra was a Trojan princess as daughter of King Tros and probably, Callirrhoe, daughter of the river god Scamander, [1] [2] or Acallaris, daughter of Eumedes. [3] She was the sister of Ilus, Assaracus, Ganymede and possibly, Cleopatra. [4] Cleomestra became the mother of Assaracus, Antenor [5] and maybe of Alcathous [6] by Aesyetes. Cleomestra and Cleopatra, as daughters of Tros are probably the same person.