1521 Sixtus V, [Felice Peretti/"Montalto"], bishop of Fermo/Pope (1585-90) was born on this day in history.
1533 Erik XIV Wasa, king of Sweden (1560-69) was born on December - 13.
1553 Henry IV, 1st Bourbon-king of Navarre/France (1572/89-1610) was born on December - 13.
1585 William Drummond of Hawthornden, Scottish poet (d. 1649) was born on this day in history.
1640 On December - 13 birth of robert Plot, English naturalist (d. 1696)
1662 Francesco Bianchini, Italian philosopher and scientist (d. 1729) was born on this day in history.
1678 On December - 13 birth of yongzheng Emperor of China (d. 1735)
1720 On December - 13 birth of carlo Gozzi, Italian dramatist (d. 1804)
0838 Pippijn I, King of Aquitania, dies on December - 13.
1048 Al-Biruni, Arabic royal astrologer, dies at 74 on this day in history.
1124 Callistus II, [Guido di Borgogna], Italian Pope (1119-24), dies on December - 13.
1126 On December - 13 hendrik IX, the Black, Duke of Bayern (1120-26), dies
1204 Maimonides, Jewish philosopher/talmudic scholar, dies in Cairo at 69 on December - 13.
1250 On this day in history frederick II, German Emperor (1212-1250), dies at 55
1404 Albrecht, duke of Bavaria, dies at 74 on this day in history.
1466 On this day in history death of donatello, Florentine artist and sculptor (b. 1386)