Duke of Rothesay (/ˈrɒθsi/ ROTH-see; Scottish Gaelic: Diùc Baile Bhòid; Scots: Duik o Rothesay) is a dynastic title of the heir apparent to the British throne, currently William, Prince of Wales. William's wife Catherine, Princess of Wales, is the current Duchess of Rothesay. Duke of Rothesay was a title of the heir apparent to the throne of the Kingdom of Scotland before 1707, of the Kingdom of Great Britain from 1707 to 1800, and now of the United Kingdom of Great Britain and Northern Ireland. It is the title mandated for use by the heir apparent when in Scotland, in preference to the titles Duke of Cornwall (which also belongs to the eldest living son of the monarch, when and only when he is also heir apparent, by right) and Prince of Wales (traditionally granted to the heir apparent