Canute's (Cnut's) name is known nowadays largely because of the story that he was so proud that he thought his command could hold back the tide.
The king reigned for twenty years, he had a wide-ranging authority, for he was at one point the lord of all Denmark, England, Norway and Scotland.
At one point, he commanded that his chair should be set on the shore, when the tide began to rise. And then he spoke to the rising sea saying “You are part of my dominion, and the ground that I am seated upon is mine, nor has anyone disobeyed my orders with impunity. Therefore, I order you not to rise onto my land, nor to wet the clothes or body of your Lord”.
But the sea carried on rising as usual without any reverence for his person, and soaked his feet and legs.
Then he moving away said: “All the inhabitants of the world should know that the power of kings is vain and trivial, and that none is worthy the name of king but he whose command the heaven, earth and sea obey by eternal laws”.

