French cardinal of the Roman Catholic Church. Seminary professor, editor, and papal emissary. Librarian of the Holy Roman Church.
 
ALS - Autograph Letter Signed: two sides of half-sheet, accompanied by original mailing envelope. Written the year he was appointed Librarian of the Church. Interesting letter de la Cuisine, a member of the imperial court and an acclaimed bibliographer. Reads:  It is too great an honor for me to be able to lay at the feet of His Holiness the homage of so venerable a judge and magistrate for me to hesitate to approve your pious idea. I only fear that, in the press of business which grows hourly, you may not be able to obtain a reception from His Holiness. I even begin to doubt that, whenever I am kindly entrusted with examining a gift, His Holiness will be able, in person, to confer on me the honor of serving as his interpreter -- an honor that obliges me to set aside any personal assessment and to limit myself to the laconic formula, scarely encouraging for the author of the work. I must also thank you for having corrected a lapse of memory -- another proof to be added to others, more distressing, only too fit to convince me that I no longer retain even the least trace of sound mind or good memory. I therefore feel all the more permitted to reiterate my thanks, asking you to accept the sincere homage of my most respectful sentiments.