Name of autobiography written by advisor and confidant of Queen catalina of castile who  governed Castile as regent from 1406 until 1418 during the minority of her son.
Catherine of Lancaster Catherine of Lancaster (Castilian: "Catalina"; 31 March 1373 – 2 June 1418) was Queen of Castile by marriage to King Henry III of Castile. She governed Castile as regent from 1406 until 1418 during the minority of her son.
Chronica latina regum Castellae The Chronica latina regum Castellae, known in Spanish as the Crónica latina de los reyes de Castilla, both meaning "Latin Chronicle of the Kings of Castile", is a medieval Latin history of the rulers of Castile from the death of Count Fernán González in 970 to the reconquest of Córdoba by King Ferdinand III in 1236–39. It was probably composed by Juan de Soria, the Bishop of Osma and chancellor of Ferdinand III, between 1217 and 1239. The majority of the text deals with the reigns of Alfonso VIII (1158–1214) and Ferdinand III (1217–1252). It was designed with two purposes: for use at the royal court as a "speculum principis" and to defend the interests of Castile against those of the Kingdom of León.