|Covid-19|Monarch – Eric XIV
7 June - The King's brother Duke John and his spouse is accused of treason in their absence.
9 August - Northern Seven Years' War
August - A fleet conquer the province and Duchy of Finland from the King's brother John on the order of the king.
12 August - Duke John and his spouse is arrested for treason after the Siege of Turku, and imprisoned at Gripsholm Castle.
22 August - Danish occupation of Älvsborg.
9 November - Danish victory at the Battle of Mared
30 December – Swedish commander Nils Persson are given the order to invade and pillage the Danish province of Blekinge.
- Erik XIV encourage the peasantry of the Danish province of Norway to rebel.
1563 in Sweden Wikipedia
Events from the year 1563 in Sweden