Harald III
He made contact with King Harald III Hardrada of Norway and persuaded him to invade England. One of the sagas claims that he sailed for Norway, and greatly impressed the Norwegian king and his court, managing to sway a decidedly unenthusiastic Hardrada, who had just concluded a long and inconclusive war with Denmark, into raising a levy to take the throne of England. With Hardrada's aid, Tostig sailed up the Humber and defeated Morcar and Edwin at Gate Fulford.