Sancho I of León

Sancho I (c. 932–966), called the Fat, was the son of Ramiro II of León. He took the throne after Ordoño III died in 956, but in 958 Count Fernán González and the nobles deposed him for his gross obesity and raised up Ordoño IV.

Fleeing to his grandmother Toda of Pamplona, Sancho promised the caliph Abd al-Rahman III lands along the Duero. In Córdoba he received treatment from the court physician; a Muslim and Pamplonian army restored him to León in 960.

He soon abandoned his agreement with the caliph. In 966 he was poisoned, leaving his young son Ramiro III to succeed him.