Selaön is the largest island in

Mälaren Mälaren ( , , or ), historically referred to as Lake Malar in English, is the third-largest freshwater lake in Sweden (after Vänern and Vättern). Its area is and its greatest depth is 64 m (210 ft). Mälaren spans from east to west. The l ...

Sweden Sweden, formally the Kingdom of Sweden, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. It borders Norway to the west and north, and Finland to the east. At , Sweden is the largest Nordic count ...

, and covers 94.72 km². It is located at

Stallarholmen Stallarholmen is a locality situated in Strängnäs Municipality, Södermanland County, Sweden, with 1,623 inhabitants in 2010. Stallarholmen, located on Lake Mälaren, is situated partly on the mainland and partly on the island of Selaön, Swede ...

, east of

Strängnäs Strängnäs is a Urban areas in Sweden, locality and the seat of Strängnäs Municipality, Södermanland County, Sweden with 15,363 inhabitants in 2020. It is located by Lake Mälaren and is the episcopal see of the Diocese of Strängnäs, one of t ...

, and it has about 1,800 permanent residents. It is connected by a bridge to the mainland. It is the largest island in any lake in Sweden. In the

Heimskringla () is the best known of the Old Norse kings' sagas. It was written in Old Norse in Iceland. While authorship of ''Heimskringla'' is nowhere attributed, some scholars assume it is written by the Icelandic poet and historian Snorri Sturluson (117 ...

, Granmar, the king of

Södermanland Södermanland ( ), locally Sörmland, sometimes referred to under its Latinisation of names, Latinized form Sudermannia or Sudermania, is a Provinces of Sweden, historical province (or ) on the south eastern coast of Sweden. It borders Österg� ...

, was murdered on this island by

Ingjald Ingjald illråde or Ingjaldr hinn illráði (''Ingold Illruler'' or ''Illready'') was a semi-legendary Swedish king of the House of Ynglings, son and successor of King Anund, and the father and predecessor of King Olof Trätälja. As with many ...

Illruler.

References

Islands of Mälaren Landforms of Södermanland County Lake islands of Sweden Strängnäs Municipality {{Södermanland-geo-stub