James Boswell died in 1795 believing he had touched and kissed a cache of Shakespeare's original letters and papers discovered by a Mr. Ireland. His friend, Edmond Malone, publicly exposed the lot as a forgery just a year later.
Marianne de Chesne
Life with Boswell:
Boswell was introduced to her by her husband on October 9, 1764. He described her as “a handsome young Polish lady”. She was actually of French descendance.
Note 1: According to the article Émerich de Vattel by J.E.G. Montgomery in the Journal of the Society of Comparative Legislation, Vol. 10, No. 1 (1909), pp. 17-39