Íñigo López de Orozco

1. Vassal of King Pedro of Castile.
2. When in 1366 King Pedro abandoned the city of Burgos to Enrique de Trastámara who had invaded Castile with Aragonese and French support, Íñigo López switched sides, eventually becoming a member of Enrique's council.
3. Íñigo López died at the hands of a victorious Pedro of Castile when he surrendered on the battlefield at Nájera (1367).

 [See Helen Nader, The Library of Iberian Resources Online, 'The Mendoza Family in the Spanish Renaissance 1350-1550', chap. 2, http://libro.uca.edu/mendoza/msr2.htm]