This article does not cite any references or sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (October 2006)

Swedish Royalty
House of Vasa

Gustav I
Parents
Erik Johansson, Cecilia Månsdotter
Children
Eric XIV, John III, Catherine, Cecilia, Magnus, Anna Maria, Sophia, Elizabeth, Charles IX
Eric XIV
Children
Sigrid, Gustav
John III
Children
Sigismund, Anna, John
Sigismund
Children
Władysław IV, John II Casimir, John Albert, Charles Ferdinand, Alexander Charles, Anna Catherine Constance
Charles IX
Children
Catherine, Gustav II Adolf, Maria Elizabeth, Christina, Charles Philip
Grandson
Charles X Gustav
Gustav II Adolf
Children
Christina
Christina

Supposed portrait of Prince Magnus of Sweden

Magnus Vasa (July 25, 1542-June 26, 1595), prince of Sweden, Duke of Östergötland from 1555. Magnus was the third son of king Gustav Vasa. His mother was queen Margareta Leijonhufvud.

Magnus had a mental illness and was the only of Gustav Vasa's sons, except for Karl and Sten who died in infancy, that didn't become king of Sweden. Due to this, he is not remembered today. He lived at Vadstena Castle in Vadstena. He was unmarried for all his life, but had some illegitimate children, three daughters are known today.

There are many stories about the 'Mad Duke', for example when he saw a mermaid in the castle moat and threw himself out of a window. He nearly drowned. There are no proof of the story, but it might come from when he in 1563 fell in the moat, during the construction of the castle drawbridge.

Magnus died at the Manorhouse of Kungsbro, outside Linköping, in 1595 and is buried in the Bridgettine Abbey Church in Vadstena.

Wikimedia Commons has media related to: Category:Magnus (Swedish prince 1542)