Theāno in Harpers Dictionary of Classical Antiquities (1898)

A celebrated female philosopher of the Pythagorean School, appears to have been the wife of Pythagoras, and the mother by him of Telauges, Mnesarchus, Myia , and Arignoté; but the accounts respecting her were various (Diog. Laert. viii. 42; Suidas, s. h. v.). Letters ascribed to her, but not genuine, exist, and are edited by Hercher (1873).