Ambrose Godfrey-Hanckwitz FRS (1660 – 15 January 1741), or Ambrose Godfrey as he preferred to be known, was a German-born British phosphorus manufacturer and apothecary, was a member of which organization with the acronym FRS, an award granted to individuals that the Royal Society judges to have made a "substantial contribution to the improvement of natural knowledge, including mathematics, engineering science and medical science"?