Question: What title was held by the man who was thought to have died at the Battle of Stamford Bridge, who also spent 15 years in exile?
Sentence (from "Harald Hardrada"): Harald Sigurdsson (Old Norse: "Haraldr Sigurðarson" ;  1015 – 25 September 1066), given the epithet Hardråde ("harðráði ", roughly translated as "stern counsel" or "hard ruler") in the sagas, was King of Norway (as Harald III) from 1046 to 1066.
Relevant evidence: Yes