Ο Stanislaus A’ Leszczynski (Stanisław I Leszczyński, 1677-1766) was a Polish nobleman and King of Poland from 1704 to 1709, and again from 1733 to 1736. He was born into the Leszczyński family and was a member of the Uhlenburg dynasty. Although his reign was full of political controversy and conflicts with the Russians and the Swedes, Stanislaus I was an important figure in the history of 18th century Poland.

In addition to his political activity, Stanislaus I Leszczynski was also known for his support of art and science. He continued to influence political and cultural events in Poland, while playing an important role in the development of European culture.

As far as Freemasonry is concerned, Stanislaus I Leszczynski was one of the best known Kings who had a connection with the Masonic Brotherhood. He was a Freemason and was associated with many lodges. His association with the 18th century fraternity marks his commitment to Enlightenment ideas.

Stanislas I Leszczynski was initiated into the Brotherhood in the early 18th century, at a time when Freemasonry was gaining popularity among the European aristocracy. He was initiated in a lodge in France, where Freemasonry was highly influential during the Enlightenment.

Stanislaus I Leszczynski was a member of the Lodge of the “Royal Secret” (or “Lodge of the Royal Secret”), and Masonic records state that he held the honorary position of Grand Master.

His association with Freemasonry was more closely linked to the values of the Enlightenment-advocating reason, individual freedom and humanism-values often promoted by Freemasons of the time. His influence as a Freemason, particularly in the royal courts of Europe, helped spread Masonic ideas among the elite.

However, due to the relatively mystical nature of Freemasonry, detailed information about its membership, especially about its lodge members and ranks, did not see the light of day.

He died on 23 February 1766 in Luneville.