Sancho Sánchez

1075–1127) was an important magnate of the Kingdom of Aragon in the late 11th and early 12th centuries, during the reigns of Sancho Ramírez, Peter I and Alfonso I.

He was governor of the important Navarrese tenancies of Erro (from 1080), the castle of San Esteban de Deyo (1084), the capital city of Pamplona (1092), Aibar and Tafalla (1098) and Falces and Leguín (1112).

[2] According to the Historia Roderici, he was captured in the battle of Morella on 14 August 1084 by the forces of Yusuf al-Mu'taman ibn Hud, king of Zaragoza, and Rodrigo Díaz de Vivar.

[6] According to the 14th-century Chronicle of San Juan de la Peña, in 1094 the inhabitants of Huesca in the taifa of Zaragoza, threatened by Sancho Ramírez, asked Alfonso VI for assistance in return for tribute.

[11] She was distantly related to the royal family, referring in a charter to avuncula mea regina domna Endrigoto (my [great-]aunt Queen Andregoto).

[17] Sancho was brother-in-law of the Castilian count Gonzalo Salvadórez who married his sister Sancha, while his nephew, their son Gómez González, became the premier nobleman of queen Urraca of León and by tradition her lover.