Othon de Champvent

Othon de Champvent (died 19 April 1312) was prince-bishop of Lausanne from 1309. He came from the Champvent lords, a cadet branch of Grandson southwest of Lake Neuchâtel, and was a son of Henri of Champvent and brother of Bishop Guillaume. His cousin Othon I of Grandson helped his career, notably at Henry III's English court, where he appears to have been from 1259; he held prebends in England and France.

Already an old man, he was raised to the see by Pope Clement V in 1309, and in 1311 renewed his church's truce with Louis II of Savoy, baron of Vaud.