History of England : Before England "ruled the waves" "Cnut the Great" ( King Canute ) tried to stop the tides.
Henry of Huntingdon, the 12th-century chronicler, tells how Cnut set his throne by the sea shore and commanded the tide to halt and not wet his feet and robes. Yet "continuing to rise as usual [the tide] dashed over his feet and legs without respect to his royal person.
Cnut the Great in Wikipedia
Some excerpts :
Then the king leapt backwards, saying: 'Let all men know how empty and worthless is the power of kings, for there is none worthy of the name, but He whom heaven, earth, and sea obey by eternal laws.' He then hung his gold crown on a crucifix, and never wore it again "to the honour of God the almighty King". This incident is usually misrepresented by popular commentators and politicians as an example of Cnut's arrogance.
This story may be apocryphal. While the contemporary Encomium Emmae has no mention of it, it would seem that so pious a dedication might have been recorded there, since the same source gives an "eye-witness account of his lavish gifts to the monasteries and poor of St Omer when on the way to Rome, and of the tears and breast-beating which accompanied them". Goscelin, writing later in the 11th century, instead has Cnut place his crown on a crucifix at Winchester one Easter, with no mention of the sea, and "with the explanation that the king of kings was more worthy of it than he".
Nevertheless, there may be a "basis of fact, in a planned act of piety" behind this story, and Henry of Huntingdon cites it as an example of the king's "nobleness and greatness of mind." Later historians repeated the story, most of them adjusting it to have Cnut more clearly aware that the tides would not obey him, and staging the scene to rebuke the flattery of his courtiers; and there are earlier Celtic parallels in stories of men who commanded the tides, namely Saint Illtud, Maelgwn, king of Gwynedd, and Tuirbe, of Tuirbe's Strand, in Brittany.
The encounter with the waves is said to have taken place at Thorn-eye (Thorn Island), or Southampton in Hampshire. There were and are numerous islands so named, including at Westminster and Bosham in West Sussex, both places closely associated with Cnut. According to the House of Commons Information Office, Cnut set up a Royal palace during his reign on Thorney Island (later to become known as Westminster) as the area was sufficiently far away from the busy settlement to the east known as London. It is believed that, on this site, Cnut tried to command the tide of the river to prove to his courtiers that they were fools to think that he could command the waves. Conflictingly, a sign on Southampton city centre's Canute Road reads, "Near this spot AD 1028 Canute reproved his courtiers".