Martín Fernández de Vilches

– Bonilla de la Sierra,[1] died (13 November 1469),[2] was a Roman Catholic prelate who served as Bishop of Ávila (1456–1469).

Of humble origins,[2] he was born in the Kingdom of Jaén.

[1] He worked as a bureaucrat during the reign of John II of Castile,[3] and advanced to become counsellor for Henry IV of Castile.

[2][4] After the ascent of Henry IV to the throne (1454), he was named Canceller Major de La Poridad, replacing Rodrigo de Villacorta, who was in disagreement with the monarch.

In 1456, he was nominated by the king as Roman Catholic Diocese of Ávila and confirmed by Pope Paul II, vacant since the death of Alonso Tostado, where he served until his death in 1469.