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?
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. In addition, he unsuccessfully claimed the Danish throne until 1064 and the English throne in 1066. Prior to becoming king, Harald had spent around fifteen years in exile as a mercenary and military commander in Kievan Rus' and of the Varangian Guard in the Byzantine Empire.
Colbrand (giant) Colbrand (also written "Colbron") was a legendary giant from English folklore, supposedly defeated by Guy of Warwick, a legendary English hero of Romance popular in England and France from the 13th to 17th centuries. The story of Sir Guy is considered by scholars to be part of the Matter of England. According to the story, Guy returned to England after some years of absence to deliver Winchester for Athelstan of England from the invading northern kings, Anelaph (Anlaf or Olaf) and Gonelaph, by slaying in single combat their champion, the Danish giant Colbrand.