(Δρυπῆτις or Δρυπετις), daughter of Dareius, the last king of Persia, was given in marriage to Hephaestion by Alexander, at the same time that he himself married her sister, Statira, or Barsine. (Arrian, Arr. Anab. 7.4.6; Diod. 17.107.) She was murdered, together with her sister, soon after the death of Alexander, by the orders of Roxana and with the connivance of Perdiccas. (Plut. Alex. c. ult.)
[E.H.B]A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890