[3] An annal entry informs us of "warfare in Gestilren, on the 16th of August; there fell King Sverker and Folke Jarl, and many Folkungs.

"[4] Thus the Swedish troops scored a victory in spite of great losses where one of their commanders, Folke Jarl, was slain.

With the dramatic fall of Sverker, the war that had plagued Sweden for two and a half years came to an end, and peace was quickly concluded with Denmark.

The banner that King Eric used in the battle was later bequeathed to Folke Jarl's nephew Eskil Magnusson, the lawspeaker of Västergötland, and bestowed on the Icelandic historian Snorri Sturluson in 1219.

[5] The battle was a victory for the Folkung party of local autonomies, who acted against the centralising forces of Catholic monarchy.

The main reason for the localization is a note in a 15th-century codex of the Westrogothic law, which says that the battle took place "in Gaestilsreen between Dala and Lena".

archivist and historian Lars-Otto Berg has claimed that it was located at Gästre (59°45′N 16°57′E / 59.750°N 16.950°E / 59.750; 16.950) in Uppland, Sweden, since he found the farm name "Gestilren" fifteen times in the local church records during the years 1580-1630.

An annotation from the early 17th century records a local tradition suggesting a connection: "King Sverker's three farms - in Tillinge Hiersten, in Försth.