Freemasons of the United Grand Lodge of England

Prince Maurice of Battenberg , (Maurice Victor Donald; 3 October 1891 – 27 October 1914) was a member of the Hessian princely Battenberg family and the extended British royal family, and the youngest grandchild of Queen Victoria. He was known as Prince Maurice throughout his life, since he died before the British royal family relinquished their German titles during World War I and the Battenbergs changed their name to Mountbatten.

Samuel Liddell (or Liddel) MacGregor Mathers (8 or 11 January 1854 – 5 or 20 November 1918), born Samuel Liddell Mathers, was a British occultist and member of the S.R.I.A.. He is primarily known as one of the founders of the Hermetic Order of the Golden Dawn, a ceremonial magic order of which offshoots still exist. He became so synonymous with the order that Golden Dawn scholar Israel Regardie observed in retrospect that "the Golden Dawn was MacGregor Mathers."