The Battle of Ronaldsway took place in 1275 at Ronaldsway in the southern part of the Isle of Man between a Scottish army and the Manx. The battle crushed the final attempt by the Manx to re-establish the Norse Sudreyar dynasty. As the battle resulted in the death of the last Norse King of Mann, Guðrøðr Magnússon, and the emigration to Norway of the remaining members of the Manx royal family, it also led to the firm establishment of Scottish rule on the Isle of Man.