Events & Holidays In April - 10
Thursday, 09 April 2026
National Sibling Day (United States of America)
National Sibling Day (United States of America)
1389 Cosimo de' Medici, ruler of Florence (d. 1464) was born on this day in history. 

1512 James V, king of Scotland (1513-42) was born on this day in history. 

1569 On this day in history birth of emilia van Nassau, daughter of Willem of Orange & Anna of Saxon 

1583 Hugo Grotius, Holland, jurist, father of international law was born on this day in history. 

1633 On this day in history birth of werner Fabricius, composer 

1651 On this day in history birth of ehrenfried Walther von Tschirnhaus, German mathematician (d. 1708) 

1656 René Lepage de Ste-Claire, lord-founder of the town of Rimouski, in New France (d. 1718) was born on this day in history. 

1695 On this day in history birth of balthazar Huydecoper, Dutch translator/historian 

0879 Louis II, the stutterer, King of France (877-79), dies on this day in history. 

0947 Hugo van Arles, count of Arles/king of Italy, dies on this day in history. 

0948 Death of King Hugh of Italy on this day in history. 

1008 On this day in history notger, bishop of Luik (972-1008), dies 

1362 On this day in history machteld, countess of Holland, dies 

1533 On this day in history frederik I, King of Denmark/Norway (1523-33), dies at 61 

1545 Death of Costanzo Festa, Italian composer on this day in history. 

1585 On this day in history gregory XIII, [Ugo Buoncampagni], Italian Pope (1572-85), dies 
