Joseph BONAPARTE (1768-1844) elder brother of Napoleon, King of Naples and then of Spain. L.A.S., Madrid March 30, 1811, [to Cambacérès, Archchancellor of the Empire]; 1page in-4. Birth of the King of Rome. "I am very grateful to Your Serene Highness for the very kind attention you gave me to the news of the birth of the King of Rome, I received it yesterday at six o'clock in the evening [...] My health has not been very good for a few days, I hope the air of Paris will restore me. I intend to set off soon, and I shall be very happy to congratulate the Emperor and Empress personally"...