I came across this today:
"Married:..... Yesterday Mr. Gaspar Weiss, of Greek Street, Soho, to Miss Baumgarten, of Craven Street, in the Strand." London Evening Post, August 24, 1775.
This is Jean Gaspard Weiss, marrying Marie Baumgarten. Before this I had found information that suggested they were married in Mulhouse, on September 20, 1775. The marriage notice above implies that the wedding took place in London, and was apparently actually on August 23, 1775.