1581 in Sweden

Incumbents

• Monarch – John III

Events

• Pontus De la Gardie, a prominent military figure, led the Swedish conquest of Narva, a key strategic location due to its accessibility to the Narva River, which would later play a significant role in the military and commercial affairs of the region.
• 7 May - The wedding of Princess Elizabeth of Sweden and Christopher, Duke of Mecklenburg took place. This union was a significant event in the year, fortifying the alliance between Sweden and Mecklenburg. The marriage was celebrated with grandeur, reflecting the political significance of the event.
• The notable work, Oeconomia eller Hushållsbok för ungt adelsfolk by Per Brahe was published, which served as a guide for young nobles in the conduct of their households and estates. This book played an instrumental role in setting the standards for the aristocratic lifestyle in Sweden during that period.

Births

• Johannes Rudbeckius, bishop of Västerås and chaplain of the king, was born this year. He would later contribute significantly to the religious, educational and social life in Sweden. His most significant achievements included the establishment of the first gymnasium in Västerås, and the introduction of confirmation in the Swedish Church.
• Elisabeth Gyllenstierna, a notable Swedish court official, was also born in this year. She would later serve as the head lady-in-waiting to Queen Maria Eleonora of Sweden and play a significant role in the royal court.

Deaths

• Gustav Vasa's third wife, Queen Catherine Stenbock. She was remembered for her efforts in managing the kingdom during Gustav's illnesses, and her patronage of arts and education.