Italian cardinal; papal diplomat; secretary of the Sac. Congr. of the Propagatiion of Faith. Archbishop of Siena. Zondadari was among the few of his peers (14 in all) admitted by Napoleon to his wedding with Marie Louise of Austria in 1810.
 
ALS - Autograph Letter Signed, one page with integral address panel, dated 12 February 1812. Addressed to his agents in Paris concerning a pension from the Royal Treasury and where the funds have been deposited.  Named by Emperor Napoléon I Bonaparte chaplain to his sister Elisa Bonaparte, princess of Lucca and Piombino. This may have been a lifetime pension awarded to him for his service to the Emperor. Merits further research.
 
In 1786 Zondadari was appointed Apostolic Nuncio to Brussels with responsibility for the Austrian Netherlands. The following year he was expelled on the orders of Emperor Joseph II as he was suspected of supporting the Braband Revolution.