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