- Born: Abt 1244, Copenhagen, Copenhagen, Sjælland, Denmark
- Marriage: King Magnus VI Lagabøte "The Lawmender" of Norway on 11 Sep 1261 in Bergen, Bergen, Hordaland, Norway
- Died: 1287, Norway about age 43
Ingeborg was the daughter of the Danish King Erik Plogpennig and Jutta of Saxonia. Her marriage to Magnus Lagabøter was yet another attempt to make peace between the two countries by arranged marriage. After the death of Magnus Lagabøter Ingeborg is believed to have taken stronger influence in the politics. During the 1280s, quarrels broke out between Norway and the German trade cities, which ended up in a defeat for Norway. The German cities joined forces with the Danish King and forced Norway to re-instate the old trade laws. This can be seen as a first taste of the political power that the Hanse-Alliance later would get. Ingeborg Eriksdatter died in 1287.
Ingeborg married King Magnus VI Lagabøte "The Lawmender" of Norway, son of King Håkon IV "The Old" Håkonsson and Margrete Skulisdatter, on 11 Sep 1261 in Bergen, Bergen, Hordaland, Norway. (King Magnus VI Lagabøte "The Lawmender" of Norway was born on 1 May 1238 in Tønsberg, Norway and died on 9 May 1280 in Bergen, Bergen, Hordaland, Norway.)