A son of Idmon and Laothoe,1 though some ancients declare that Idmon (the knowing) was only a surname of Thestor.

He was the father of Calchas, Theoclymenus, Leucippe, and Theonoë.2 His daughter Theonoë was carried off by pirates, and sold to king Icarus in Caria. Thestor, who went out in search of her, suffered shipwreck, and was taken as a prisoner to Caria. His other daughter Leucippe then consulted the Delphic oracle about her absent father and sister, and was directed to travel through all countries in the attire of a priest of Apollo.

In this manner she came to Caria, where her own sister fell in love with her, and as the love was not returned, Theonoë ordered her to be killed. Thestor received the order to kill her, but when he was on the point of executing it, he recognized his children, and with presents from Icarus, Thestor with his daughters returned home.3



  1. Scholiast on Apollonius Rhodius, i, 139.
  2. Homer. Iliad i, 69; Hyginus. Fabulae, 128.
  3. Hyginus. Fabulae, 190.


  • Smith, William. (1870). Dictionary of Greek and Roman Biography and Mythology. London: Taylor, Walton, and Maberly.

This article incorporates text from Dictionary of Greek and Roman Biography and Mythology (1870) by William Smith, which is in the public domain.