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?
Þjóðólfr Arnórsson Þjóðólfr Arnórsson was an 11th-century Icelandic skáld, who spent his career as a court poet to the Norwegian kings Magnus the Good and Harald Hardrada and is thought to have died with the latter at the Battle of Stamford Bridge in 1066.
Robert Dudley (explorer) Sir Robert Dudley (7 August 1574 – 6 September 1649) was an English explorer and cartographer. In 1594, he led an expedition to the West Indies, of which he wrote an account. The illegitimate son of Robert Dudley, 1st Earl of Leicester, he inherited the bulk of the Earl's estate in accordance with his father's will, including Kenilworth Castle. In 1603–1605, he tried unsuccessfully to establish his legitimacy in court. After that he left England forever, finding a new existence in the service of the Grand Dukes of Tuscany. There, he worked as an engineer and shipbuilder, and designed and published "Dell'Arcano del Mare" (1645-1646), the first maritime atlas to cover the whole world. He was also a skilled navigator and mathematician. In Italy, he styled himself "Earl of Warwick and Leicester", as well as "Duke of Northumberland", a title recognized by the Emperor Ferdinand II.