- Doctor in cannon law and chancellor of Prince Juan of Castile, son of Enrique II, before he was crowned.
- Was sent to Portugal six months after the signing of theTreaty of Alcoutim (1371) to check whether King Fernando was observing all the clauses of the treaty.
Martim Perez
Chronicle entries in which Martín Pérez appears:
Crónica de D. Fernando, ch. 69