The Orange Institution, more commonly known as the Orange Orer or the Orange Lodge, is a Protestant fraternal organisation based predominantly in Northern Ireland and Scotland with lodges throughout the Commonwealth and the United States. It was founded in Loughgall, County Armagh, Ireland in 1795; its name is a tribute to Dutch-born Protestant king of Britain, William III of England (William II of Scotland), of the House of Orange-Nassau. William had defeated the Catholic army of James II at the Battle of the Boyne in 1690. Observers have accused the Orange Institution of being a sectarian organisation, due to its goals and its exclusion of Roman Catholics as members, however some denominations of Protestants are also ineligible for membership.