|Died||c. 1178 (aged 52–53)|
|Issue||Magnus V of Norway|
|Old Norse||Kristin Sigurðardóttir|
|Father||Sigurd I of Norway|
|Mother||Malmfred of Kiev|
Kristin Sigurdsdatter (ca. 1125-1178) was a Norwegian princess and mother of King Magnus V of Norway.
Kristin was a daughter of King Sigurd I of Norway and Malmfred of Kiev. She married Erling Skakke (Erling Ormsson Skakke), a Norwegian nobleman who had earned his reputation crusading with Rögnvald Kali Kolsson, the Earl of Orkney. They had a son, Magnus Erlingsson.
Kristin was the only legitimate child of King Sigurd. In 1130, King Sigurd died with no legitimate sons. An illegitimate son, Magnus Sigurdsson (Magnus 4 Sigurdsson Blinde), became king of Norway jointly with his uncle Harald Gille. Harald Gille had four sons, Inge, Eystein, Sigurd and Magnus Haraldsson, all of whom became kings of Norway.
- Kristin Sigurdsdatter – utdypning (Store norske leksikon)
- Claus Krag. "Malmfrid, Dronning". Norsk biografisk leksikon. Retrieved May 25, 2016.
- Erling Ormsson Skakke – utdypning (Store norske leksikon)
- Nils Petter Thuesen. "Magnus 4 Sigurdsson Blinde, Konge". Norsk biografisk leksikon. Retrieved May 25, 2016.
- Knut Peter Lyche Arstad. "Gilchrist Harald 4 Gille". Norsk biografisk leksikon. Retrieved May 25, 2016.
- Magnus 5 Erlingsson – utdypning (Store norske leksikon)
|Ancestors of Kristin Sigurdsdatter|