Margarita Torres is a Doctor of Medieval History and a professor in the same subject at the University of León. Author of more than fifty articles and papers, her published books include: Linajes nobiliarios en León y Castilla (siglos IXXIII), El Cid y otros señores de la guerra, Batallas legendarias y el oficio de la guerra and Enrique de Castilla. She has been León’s official chronicler for a number years.