Pope Urban VI (r. 1378–1389) created 42 cardinals in four consistories held throughout his pontificate. In 1381 he named his future successor Pope Boniface IX as a cardinal.[1]
The pope offered the cardinalate to the Bishop of London William Courtenay though he refused the nomination.[1]
The pope was said to have offered the cardinalate to the Archbishop of Cologne Friedrich von Saarwerden and the Archbishop of Mainz though both refused. In addition, the Archbishop of Trier Kuno von Falkenstein, the Bishop of Liège Arnold von Hoorn O.F.M., the Bishop of Breslau Wenzel von Liegnitz, and Pietro Orsini-Rosenberg (priest from Prague) all declined elevations to the cardinalate. The pope also offered three others the cardinalate, but these three men accepted the promotion from the pope's rival Antipope Clement VII.[1]