>>7909219 (PB)
Masonic HQ, Roslin. aka Rosslyn
"First Grand Master Mason of Scotland, elected in 1736 when the Grand Lodge of Scotland was formed, an office he held for one year only. A good deal of discussion has been had pro and con as to the validity of two old documents known as the Saint Clair Charters, one dated about 1601 and one 1628, in which documents the statement is made that the Operative Masons of Scotland had conferred upon the family of Saint Clair of Roslin the honor of being recognized as Patron and Protector of the Craft. In 1736 when a first Grand Master was to be chosen for the Scottish Grand Lodge, William Saint Clair was made a Freemason in the Lodge Canongate Kilwinning and he also formally resigned all claims to be Patron and Protector of the Freemasons in Scotland on November 30 of the same year at a meeting held at Edinburgh. William Saint Clair died in 1778."
https://freemasonry.bcy.ca/biography/stclair_w/stclair_w.html
Since the late 1980s, the chapel has been the subject of speculative theories concerning a connection with the Knights Templar and the Holy Grail, and Freemasonry. It was prominently featured in this role in Dan Brown's bestselling novel The Da Vinci Code (2003) and its 2006 film adaptation. Medieval historians say these accounts have no basis in fact.
https://en.wikipedia.org/wiki/Rosslyn_Chapel