1488 Ulrich von Hutten, German poet/humanist/patriot was born on April - 21.
1546 Arcangelo Crivelli, composer was born on April - 21.
1555 Ludovico Carracci, Italian painter (d. 1619) was born on this day in history.
1619 John A van Riebeeck, colonial director/founder (Cape Colony) was born on this day in history.
1651 Blessed Joseph Vaz, Apostle of Ceylon (d. 1711) was born on this day in history.
1652 On this day in history birth of michel Rolle, French mathematician (d. 1719)
1671 John Law, Scottish economist (d. 1729) was born on this day in history.
1672 On this day in history birth of johann Philipp Kafer, composer
1073 On April - 21 alexander II, [Anselmo da Baggio], Pope (1061-73), dies
1109 On April - 21 anselmus, philosopher/archbishop of Canterbury, dies
1142 On this day in history death of pierre Abélard, French writer (b. 1079)
1329 On April - 21 death of frederick IV, Duke of Lorraine (b. 1282)
1509 Henry VII, 1st Tudor king of England (1485-1509), dies at 52 on April - 21.
1551 On April - 21 death of oda Nobuhide, Japanese warlord (b. 1510)
1552 Peter Apianus, [Bennewitz/Bienewitz], German astronomer, dies at 50 on April - 21.
1557 On April - 21 death of petrus Apianus, German mathematician (b. 1495)