Pope Urban VI
The two collections of papal biographies of the 15th century remain independent, although they may have been intended to be continuations of the "Liber Pontificalis". The first extends from popes Benedict XII (1334–1342) to Martin V (1417–1431), or in one manuscript to Eugene IV (1431–1447). The second extends from Pope Urban VI (1378–1389) to Pope Pius II (1458–1464).