Harald Hardrada
From Tardis Wiki, the free Doctor Who reference
Harald Hardrada was king of Norway in the 1th century. He led a Viking invasion of England in 1066. He fought against the Saxons, led by King Harold Godwinson, at Stamford Bridge. The battle ended with victory for the Saxons, but weakened them. This resulted in their defeat in the Battle of Hastings by the Normans. (TV: The Time Meddler)