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.
Alfonso V of Aragon Alfonso the Magnanimous KG (also Alphonso; Catalan: Alfons ; 1396 – 27 June 1458) was the King of Aragon (as Alfonso V), Valencia (as Alfonso III), Majorca, Sardinia and Corsica (as Alfonso II), Sicily (as Alfonso I) and Count of Barcelona (as Alfonso IV) from 1416, and King of Naples (as Alfonso I) from 1442 until his death. He was one of the most prominent figures of the early Renaissance and a knight of the Order of the Dragon.