Nun'Álvares Pereira coat of arms
Nuno Álvares Pereira was born on 24 June 1360 in Flor da Rosa, near Crato, central Portugal, the illegitimate son of Dom Álvaro Gonçalves Pereira, Prior of Crato and Iria Gonçalves do Carvalhal. His grandfather was Dom Gonçalo (Gonçalves) Pereira, 97th Archbishop of Braga (1326–1349). He was descended from the oldest Portuguese and Galician nobility. About a year after his birth, the child was legitimized by royal decree and so was able to receive a knightly education typical of the offspring of the noble families of the time. At 13 years of age he became page to Queen Leonor. At age 16, he married Leonor de Alvim, a rich young widow, daughter of João Pires de Alvim and wife Branca Pires Coelho and childless widow of Vasco Gonçalves Barroso. Three children were born to the union, two boys who died early in life, and a girl, Beatrice, who would eventually marry Afonso, first Duke of Bragança, son of King João I.