[1] He was subsequently legitimized by the sovereigns of Castile and Portugal, and became Don Pedro Alvarez de Sotomayor.

[2] Pedro's ancestral home was Soutomaior Castle, although he also resided for periods of his life in the courts of Castile and Portugal.

[1] Pedro Álvarez de Sotomayor acquired the epithet "Madruga" because he would "rise early" (Spanish: madrugar) in the morning.

Instead of waiting until dawn Pedro Alvarez decided that first cockcrow was at midnight, and so rode through the night until he reached his rival's castle.

[4] During the War of the Castilian Succession in the 1470s he was a supporter of Joanna la Beltraneja (daughter of Henry IV) against the claims of Isabella I of Castile and Ferdinand.

[5] Pedro Madruga's reputation is that of "a turbulent magnate who plowed a deep furrow in Galicia's troubled fifteenth century".