Deaths on April 6

Henry Stafford, 1st Earl of Wiltshire, English nobleman (b. 1479)

Henry Stafford, 1st Earl of Wiltshire (c. 1479 – 6 April 1523) was an English peer.

6 Jun

Kalmar Union
Gustav Vasa, the Swedish regent, is elected King of Sweden, marking a symbolic end to the Kalmar Union. This is the Swedish national day.
10 Jun

Frederick I of Denmark
Copenhagen is surrounded by the army of Frederick I of Denmark, as the city won't recognise him as the successor of Christian II of Denmark.