María Díaz II de Haro

She was the daughter of Juan de Castilla y Haro and his wife, Isabel of Portugal and was Lady of Biscay from 1334 until her death in 1348.

[1] During the first part of the reign of Alfonso XI, her husband Juan Núñez III reclaimed from the king in her name, all properties that had previously belonged to her father.

Alfonso XI ratified the possession of the Lordship of Biscay as belonging to María Díaz II and promised to not use the title himself in any way, something that he had previously done since 1332.

[3] Upon his death, Tello of Castile, the husband of María Díaz II's daughter Juana de Lara was also buried at the convent.

The sacristy of the church still contains the grave of Tello de Castilla who wrote in his will the desire to be buried in a silver coffin.

Arms of the House of Haro .
Iglesia de San Francisco, Palencia that formed part of the former convent of San Francisco where María Díaz de Haro was buried beside her son, the infante Tello de Castilla.