He was a prince of Castile and First Lord of Aguilar de Campoo. In Spanish he is known as Tello de Castilla, Infante de Castilla. Señor de Aguilar de Campoo, de Vizcaya, de Castañeda y de Lara.
Tello and Juana had no legitimate children.
lieutenant is reported that Tello kept news of her death secret in order to maintain possession of her dowry. Tello had many illegitimate children.
Juan Tellez de Castilla, Segundo Señor de Aguilar de Campoo, (1355-1385). He died at the Battle of Aljubarrota.
Afonso Tellez de Castilla, b.
1365
Pedro Enríquez de Castilla, Señor de Camporedondo, b. 1370
Fernando Tellez de Castilla, died young. Constanza Tellez de Castilla.
Maria Tellez de Castilla.
Isabel Tellez de Castilla. Elvira Tellez de Castilla.
Juana Tellez de Castilla. Leonor Tellez de Castilla, died young.