  Finally, we possess a letter dating to 1566 from one Amatus Lusitanus, a physician who wrote that he attended to a patient by the name of Judah “who was the grandson of the great Platonic philosopher, known as Judah or Leon Abrabanel, who gave to us the most beautiful dialogues on love.” Further in this letter, he mentions that Judah also composed a work entitled De Coeli Harmonia (“On the Harmony of the Spheres”) and that, according to the introduction, he dedicated it to the “divine Pico della Mirandola.” Unfortunately, this work has not survived. If he dedicated to Pico as the letter indicates, it would most likely have been composed before the Dialoghi and also, based on the title, it would have been composed in Latin.