20th January » Christian II of Denmark e.g Christian II is forced to abdicate as King of Denmark and Norway.
6th June » Gustav Vasa, the Swedish regent, is elected Monarchy of Sweden called King of Sweden, marking a symbolic end to the Kalmar Union. This is the Swedish national day.
1st July » Johann Esch and Heinrich Voes become the first Lutheran martyrs, burned at the stake by Roman Catholic authorities in Brussels.
Famous Birthdays in 1523
5th April » Blaise de Vigenère, French cryptographer and diplomat (d. 1596)
5th June » Margaret of France, Duchess of Berry (d. 1573)
Famous Deaths in History for 1523
7th May » Franz von Sickingen, German knight (b. 1481)
23rd May » Ashikaga Yoshitane, Japanese shogun (b. 1466)
13th August » Gerard David, Flemish painter (b. 1460)