Later life and burial Ingeborg died in 1254. In 1261, Birger married Queen Mechtilde of Holstein, the widow of the Danish king Abel, who had allied herself with the Archbishop Jakob Erlandsen to protect her sons' interitance against King Christopher I of Denmark. The marriage produced no children. Birger died on 21 October 1266, at Jälbolung in Västergötland. After Birger's death, Mechtilde returned to Denmark, where she died in 1288.
lAter life AnD bUrial ingeBorg DiEd in 1254. In 1261, birger marrieD QuEeN mEcHTILdE of hOlStein, The widoW of the danisH kING abel, who had AlLiEd heRself wiTh the ArCHbisHop jakob ERLandsEn to pRotect hEr sOns' intERitAnCe agAiNsT KinG chRistopher i of deNmark. ThE mARRiagE ProdUced no childreN. birGER dIED oN 21 octoBer 1266, At JÄlbolunG in VÄsTergötLand. AFTer biRGer'S dEAth, mEchtIldE returneD to dEnMark, whErE she dIED iN 1288.