Martín Alfonso de León

[2] They had one son, Martín, and three daughters, Sancha, María and Urraca, all born between 1218 and 1230, the year of Alfonso's death.

[2] One of his first appearances in contemporary documentation was on 13 January 1243 at the Monastery of Santiago de Ermelo, in Bueu, Galicia, when he and his mother Taresia Egidii sold some property to a Martín Fernández and his wife.

[3] He and his wife María Méndez are recorded often in the cartulary of the Monastery of Sancti Spíritus in Salamanca which they founded in March 1268 with the support of Paio Peres Correia, Grand Master of the Order of Santiago, one of the few monasteries of the order reserved solely for women.

[4] They made many donations for its founding, including lands in Galicia, León, and Portugal, requesting to be buried there.

[10] A later genealogist, Ulloa Golfín, invented a son for Martín Alfonso and his supposed wife, María González Girón, known by the name of Gil Alfonso de León who never existed, either as a son of Gil Vázquez or of his grandson Martín,[10] and who is claimed to be an ancestor of the Mogollón family of Extremadura.