Sverre Magnus, Prince of Sweden, Duke of Östergötland, formerly Prince of Norway (3 December 2005 in Oslo, Norway - 19 April 2086 in Stockholm, Sweden) was the consort of Queen Estelle I of Sweden. He was the second and youngest child and only son of King Haakon VIII of Norway and third and youngest child and second son of Queen Mette-Marit of Norway.
He married, firstly, 14 April 2037 in Oslo to his first cousin Maud Angelica Behn (29 April 2003 in Oslo - 24 September 2088 in Oslo), the oldest child and daughter of Princess Märtha Louise of Norway and Ari Behn. They were divorced 19 August 2050. In this marriage, he had the following issue:
Prince Harald of Norway, pretender to the Norwegian throne
Prince Olav Christian of Norway
Prince Ari Haakon of Norway
He married, secondly, 3 June 2056 in Stockholm Cathedral to then Crown Princess Estelle of Sweden (later Queen Estelle I), and renounced then his Norwegian title, and was created Prince of Sweden and Duke of Östergötland. He had no issue in this marriage.