Marianna Denhoff (1685–1730), also Maria Magdalena, Gräfin von Dönhoff, née Bielińska, was a German-Polish aristocrat.
[2] Marianna Denhoff was the official royal mistress, the so-called Maîtresse-en-titre, of King Augustus II the Strong.
[3] Marianna Denhoff was politically active and cooperated with Jean Victor, Baron de Besenval, the French ambassador in Poland, to persuade the king in favour of a Pro-French policy.
A diplomatic success that was certainly noticed in France and also paid off for the French ambassador.
[5] Ambassador Jean Victor, Baron de Besenval, married Marianna Denhoff's sister Katarzyna Bielińska (1684–1761) on 18 September 1716.