Mar 14 In the year 1457 death of jingtai Emperor of China (b. 1428)
May 22 In the year 1457 death of saint Rita of Cascia, Italian saint (b. 1381)
Aug 01 Laurentius Valla, Italian philosopher (Voluptate), dies at about 50 in the year 1457.
Nov 23 Ladislaus V Posthumus, king of Hungary/Bohemia, dies at 17 in the year 1457.