Fernán Pérez de Andrade or Fernán Peres d'Andrade was a Galician knight. His birthdate is unknown but is presumably before 1330. His death date fell between July 28 and August 21, 1397. The fourth son of Ruy Freyre de Andrade and Inés Rodriguez de Sotomayor, he belonged to a family associated with the knights of the Orden de la Banda since its founding by Alfonso XI of Castile in 1332. He was married to Sancha Rodríguez, daughter of Aras Pardo and Tareyga Affonso, and with whom he was known to have had two daughters, Maria and Inés Fernández, nuns of the Order of Saint Clare, and a son who died at an early age, leaving the family without a direct male heir.
Pires de Andrade was a knight always ready for battle who enjoyed hunting, poetry and chivalric books, as befitted the tastes of those days. He was a sponsor and protector of the Catholic Church, though it is well documented that he usurped the Church's properties, and abused his power in his domains when it suited him. He sided with Henry II of Castile {Enrique de Trastámara} in Henry's confrontation with his half-brother Peter in the last years of the feud, until Henry's assassination in Monteil.