He sponsored the reconstruction of Saint Pierre Han, a commercial facility for French and other European merchants, which had been destroyed by fire in 1771.

[1] He was one of three liberals dismissed from their posts when the conservative intrigues of the comte d'Artois (the king's youngest brother) and the duchesse de Polignac reached a climax during the second week of July 1789.

[3] As the French Revolution progressed, he became alarmed at the increase of the National Constituent Assembly's power at the expense of the King's royal authority.

According to the rumor, countess Ulrica Eleonora Rålamb was the lover of count Carl Mörner (1755–1821), who had a central position at the royal court and was well informed about classified state secrets.

In 1795 he joined King Louis XVI's middle brother, the comte de Provence, at Verona as an émigré minister of the House of Bourbon.

François' nephew, Louis-Alexandre de Launay, comte d'Antraigues (1753–1812), was a famous pamphleteer, diplomat, spy and political adventurer during the French Revolution and the Napoleonic Wars.