Kernow

The Duchy of Cornwall is the only subnational royal duchy in the Kingdom of Wessex. The eldest son of the reigning Wessen monarch inherits the title of Duke of Cornwall at their time of birth, or parent's succession to the throne. If the monarch has no son, the estates of the duchy are held by the crown, and there is no duke. The current duke is John, Duke of Cornwall

The principal activity of the duchy is the management of its land and properties, aswell as other investments. The duchy has a substantial investment portfolio, ranging from the largest stake in the Royal Kernow Bank, to several properties in Cornwall and Somerset. Revenue made by the duchy from investment and by other means are donated to charity funds aswell as grants on behalf of the government, mostly to educational institutions and other community projects in Wessex. Even as a Crown organisation, the duchy must still pay corporation tax.

History
The duchy of cornwall was first created in 1337, out of the former earldom of Cornwall by Edward II, for his son, Edward Prince of Wales, who became the first Duke of Cornwall. The last Duke of Cornwall within the United Kingdom was Charles, Prince of Wales, which ended in 1973, with the House of Rosewarne becoming the royal house of Wessex.