Alfonso de la Cerda, (Valladolid 1270 - Ávila 1333), called "the Disinherited", was the elder son of Ferdinand de la Cerda and his wife Blanche of France, and was a grandson of Alfonso X of Castile.

Despite this support from the King of Aragon, Alfonso was unable to regain the throne.

In 1304, as part of the Treaty of Torrellas, James II of Aragon and Ferdinand IV of Castile Alfonso agreed to resign all claims on the throne of León.

In return, he was appointed Lord of Alba, Bejar and Gibraleón, and other manors, possessions and revenues, distributed throughout the Castilian-Leonese territory, in order that Alfonso de la Cerda could not form a large independent dominion.

Later, Charles IV of France gave Alfonso de la Cerda the title of Baron de Lunel, a municipality located in the region of Languedoc-Roussillon, France.