A modern edition (1961) "Lettere ai Gallicani" has been published of his hundreds of letters to French correspondents. These are mainly to jurists: Jacques Auguste de Thou, Jacques Lechassier, Jacques Gillot. Another correspondent was William Cavendish, 2nd Earl of Devonshire; English translations by Thomas Hobbes of 45 letters to the Earl were published (Hobbes acted as the Earl's secretary), and it is now thought that these are jointly from Sarpi (when alive) and his close friend Fulgenzio Micanzio, something concealed at the time as a matter of prudence. Micanzio was also in touch with Dudley Carleton, 1st Viscount Dorchester. Giusto Fontanini's "Storia arcana della vita di Pietro Sarpi" (1863), a bitter libel, is important for the letters of Sarpi it contains.