1165 Philip II Augustus, 1st great Capetian king of France (1179-1223) was born on this day in history.
1535 Shimazu Yoshihiro, Japanese samurai and warlord (d. 1619) was born on this day in history.
1567 Francois de Sales, French bishop of Geneva/writer/saint was born on August - 21.
1597 On August - 21 birth of roger Twysden, English antiquarian and royalist (d. 1672)
1642 On August - 21 birth of johann Friedrich Treiber, composer
1643 On this day in history birth of afonso VI, king of Portugal (1656-67) (mentally ill)
1660 On this day in history birth of hubert Gautier, engineer, wrote 1st book on bridge building
1665 On August - 21 birth of giacomo F. Maraldi, French-Italian astronomer (d. 1729)
1131 Boudouin II van Bourg, king of Jerusalem, dies on this day in history.
1157 On August - 21 death of king Alfonso VII of Castile (b. 1104/1105)
1190 On August - 21 godfried III, duke of Brabant (Grimbergse war), dies
1245 On this day in history alexander van Hales, English scholar, dies
1271 Death of Alphonse of Toulouse, son of Louis VIII of France (b. 1220) on this day in history.
1516 On August - 21 john III van Egmont, [Manke John], viceroy of Holland, dies at 78
1581 Death of Sakuma Nobumori, Japanese retainer and samurai (b. 1527) on August - 21.
1614 On August - 21 death of elizabeth Báthory, the world's most prolific female serial killer (b. 1560)