The Royal Hibernian Military School was founded in the Phoenix Park, Dublin, Ireland in 1769, to educate orphaned children of members of the British armed forces in Ireland.
In 1922 the Royal Hibernian Military School moved to Shorncliffe, in Folkestone, Kent, and in 1924 it was merged with the Duke of York's Royal Military School which, by then, was in its current location atop 'Lone Tree Hill' above Dover Castle.