Pedro Téllez-Girón, 3rd Count of Ureña

Pedro stated that Alonso Pérez de Guzmán, son of the third Duke and his second wife, was an illegitimate child.

On December 2, Pedro Girón moved his army from Villabrágima to Villalpando, and took that city without resistance.

The loss of Tordesillas was a serious setback for the comuneros, who lost access to Queen Juana I and the claim to fight in her name.

Pedro Girón was blamed for his troop movement and was forced to abandon his command.

Some historians later accused Girón of not merely making an error, but rather intentionally betraying the comuneros and coming to an agreement with the leader of the royalist army, his maternal uncle Íñigo Fernández de Velasco.