Complex sentence: Under the English Constitution this degree is only conferred in Mark Masons'Lodges, which are independent from the United Grand Lodge of England and administrated from Mark Masons' Hall in London.
Split into simpler sentences: Under the English Constitution this degree is only conferred in Mark Masons'Lodges, which are independent from the United Grand Lodge of England and administrated from Mark Masons' Hall, London. The Order is administrated from Mark Masons' Hall in London.