1278 On this day in history birth of michael IX Palaeologus, co-ruling Eastern Roman Emperor (d. 1320)
1539 On April - 17 birth of tobias Stimmer, Swiss painter/cartoonist (Comedia)
1573 On this day in history birth of maximilian I, duke/ruler of Bayern (Catholic League)
1573 On April - 17 birth of maximilian I, Elector of Bavaria (d. 1651)
1586 John Ford, English dramatist ('Tis Pity She's a Whore) was born on April - 17.
1587 On this day in history birth of marco Ivan Lukacic, composer
1598 Giovanni Riccioli, Italian astronomer (d. 1671) was born on April - 17.
1620 Marguerite Bourgeoys, founder of the Congregation of Notre Dame (d. 1700) was born on this day in history.
0326 Death of Alexander of Alexandria, Patriarch of Alexandria on this day in history.
0485 On April - 17 proclus, Greek mathematician, dies in Athens [or Apr 14]
0617 Death of Donnán of Eigg, Celtic Christian martyr, patron saint of Eigg on April - 17.
0818 On this day in history bernhard I, King of Italy, dies
0858 Benedict III, Italian Pope (855-58), dies on this day in history.
1080 On this day in history death of king Harald III of Denmark (b. 1041)
1272 On April - 17 zita/Cita, Italian maid/saint, dies at about 59
1297 On this day in history willem van Afflighem, Flemish poet/abbot St Truiden, dies at about 86