What is Royal Arch Masonry?
Put simply, it is a continuation of Craft Freemasonry. Its members, called Companions, meet in a Chapter under a Grand Chapter. Chapters are ruled over by three Principals, who rule conjointly, and the Grand Chapter is ruled over by three Grand Principals, with a Pro First Grand Principal when the First Grand Principal is a Royal Prince, as at present.
Chapters in England and Wales are grouped as a Metropolitan area or in Provinces (based on the old Counties) and Chapters overseas are grouped in Districts. Metropolitan, Provincial and District Grand Chapters are ruled over by a Grand Superintendent who is appointed by the First Grand Principal as his personal representative for that particular area.