See also: List of Manx royal consorts.
The King of Mann was the title taken between 1237 and 1504 by the various rulers, both sovereign and suzerain, over the Kingdom of Mann – the Isle of Man which is located in the Irish Sea, at the centre of the British Isles. Since 1504, the head of state has been known as the Lord of Mann.
See Kingdom of the Isles and List of rulers of the Kingdom of the IslesSince the emergence of Somerled and his descendants in the 12th century, the Manx kings began to lose territory and power in the Hebrides. Before the reigns of the three sons of Olaf the Black, the Manx kings styled themselves "King of the Isles". By the time of the reigns of Olaf's sons, the kings had begun to style themselves "King of Mann and the Isles".
The Kings of Mann and the Isles were vassals of the Kings of Norway.
Between 1265 and 1333, Mann was ruled directly by the kings of Scotland (1265–1290, 1293–1296, 1313–1317, 1328–1333) or the kings of England (1290–1293, 1296–1313,[4] 1317–1328).
On 9 August 1333 Edward III renounced all royal claims over the Isle of Man, and recognised it as an independent kingdom under its then king, William Montacute, 1st Earl of Salisbury.
William le Scrope, Earl of Wiltshire was the last King of Mann in this line, claiming descent from the House of Godred Crovan, the earlier Norse Rulers.
William le Scrope was executed for treason for his support of Richard II in his struggle with Henry Bolingbroke, who defeated Richard and became Henry IV. Le Scrope's possessions, including the Isle of Man, passed to the Crown.
As Henry's predecessor, Edward III, had recognised Mann as an independent kingdom, Henry IV did not directly claim the Manx throne, but instead proclaimed that he had acquired the island by right of conquest, which in international legal theory at that time erased any existing constitutional arrangements. He then on 19 October 1399 granted the Island, as a fiefdom under the English Crown, to Henry Percy, 1st Earl of Northumberland together with wide-ranging powers of government and associated regalities, together with the style of 'Lord of Man', in a position of feudality and thus without sovereignty.[5] Despite this, Percy styled himself as 'King of Mann'.
Following Percy's treasonous rebellion, Henry IV granted the suzerainty of the Isle of Man, on similar terms but only for the term of his life, to Sir John Stanley in 1405.[6] In addition, but separate from the power of governance over the Island, John Stanley was also granted the patronage of the Diocese of Sodor and Man.
A second letters-patent were issued and re-granted to Sir John Stanley on 6 April 1406, the difference being that the grant was inheritable and had a different feudal fee, the service of which comprised rendering homage and a tribute of two falcons to all future kings of England on their coronations.[7]
See also: Lord of Mann. Edward Stanley, 3rd Earl of Derby, the son of Thomas Stanley, 2nd Earl of Derby, did not take the style "King", and he and his successors were generally known instead as Lord of Mann.[8] However, the Latin style Rex Manniae et Insularum (King of Mann and the Isles) continued to be occasionally used in official documents until at least the 17th century.
In 1765 the title was revested in the Crown of Great Britain; thus today the title, Lord of Mann, is used by King Charles III.[9] [10]
In 2007, an American businessman named David Drew Howe, after researching his genealogy, claimed to be rightful "King of Man". His attempts to claim the defunct title and gain the acceptance of his "subjects" are the focus of the 2015 TLC docudrama series Suddenly Royal. In 2017, Howe "abdicated the throne" and abandoned any claims to the title of 'King of Man'.[11]