1165 On this day in history birth of philip II Augustus, 1st great Capetian king of France (1179-1223)
1535 On August - 21 birth of shimazu Yoshihiro, Japanese samurai and warlord (d. 1619)
1567 Francois de Sales, French bishop of Geneva/writer/saint was born on this day in history.
1597 Roger Twysden, English antiquarian and royalist (d. 1672) was born on August - 21.
1642 On August - 21 birth of johann Friedrich Treiber, composer
1643 Afonso VI, king of Portugal (1656-67) (mentally ill) was born on this day in history.
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 Godfried III, duke of Brabant (Grimbergse war), dies on this day in history.
1245 Alexander van Hales, English scholar, dies on August - 21.
1271 On this day in history death of alphonse of Toulouse, son of Louis VIII of France (b. 1220)
1516 On August - 21 john III van Egmont, [Manke John], viceroy of Holland, dies at 78
1581 On August - 21 death of sakuma Nobumori, Japanese retainer and samurai (b. 1527)
1614 Death of Elizabeth Báthory, the world's most prolific female serial killer (b. 1560) on August - 21.