The Holy Royal Arch is a degree of Freemasonry. The Royal Arch is present in all main masonic systems, though in some it is worked as part of Craft (‘mainstream’) Freemasonry, and in others in an appendant (‘additional’) order. Royal Arch Masons meet as a Chapter; in the Supreme Order of the Holy Royal Arch as practised in the British Isles, much of Europe and the Commonwealth, Chapters confer the single degree of Royal Arch Mason.