- Held the Portuguese city of Bragança for King Enrique II of Castile in the course of the hostilities known as the 1st Guerra Fernandina (1370-1371).
- By the Treaty of Alcoutim (1371) signed between Fernando of Portugal and Enrique II of Castile, he is asked to return Bragança and several other castles and townships to the Portuguese.
Garcia Alvares d'Osorio