 Albornoz was born at Carrascosa del Campo, (Cuenca) early in the 14th century.He was the son of Gil Állvarez de Albornoz and of Doña Teresa de Luna, sister of Jimeno de Luna, archbishop of Toledo and a member of the prominent Carrillo family.He was educated at Zaragoza, while his uncle was bishop of that see, and studied law at Toulouse.