- Guillen de Villamur, according to Pero López de Ayala in his 'Cronicas de los reyes de Castilla: Don Pedro, Don Enrique II, Don Juan I, 'Cronica Del Rey Don Pedro', vol. 1, ch. 32.
- Was made prisoner at the Battle of Nájera, 1367.
- Jioned the faction of Enrique de Trastámara during his struggke for the throne of Castile.
Berni de Villamur