CATHERINE OF LANCASTER (1373-1418), wife of Henry III of Castile. Document signed ('Yo la Reyna'), Segovia, 10 June 1407, privilege in the name of her son, Juan II, exempting the lands of Diego Fernandez de Quiñones from the jurisdiction of the adelantado, in Spanish, on paper, one leaf, approx 303 x 340mm, contemporary endorsements, papered seal on verso (worn, some worming, split at folds, repairs to verso); [with] an 18th-century copy, on vellum, of letters patent of Edward, Prince of Wales (the Black Prince).

CATHERINE OF LANCASTER (1373-1418), wife of Henry III of Castile. Document signed ('Yo la Reyna'), Segovia, 10 June 1407, privilege in the name of her son, Juan II, exempting the lands of Diego Fernandez de Quiñones from the jurisdiction of the adelantado, in Spanish, on paper, one leaf, approx 303 x 340mm, contemporary endorsements, papered seal on verso (worn, some worming, split at folds, repairs to verso); [with] an 18th-century copy, on vellum, of letters patent of Edward, Prince of Wales (the Black Prince).

The daughter of John of Gaunt and Constance of Castile, Catherine's marriage to the king of the Trastàmara line, Henry III in 1588 (when she was 15 and her husband 9 years old), reconciled the two rival claims to the throne of Castile. She was regent during the minority of her son, John II, who inherited the throne aged one and a half. (2)