Italian-born Capuchin missionary. He arrived in Bengal when he was 31, in the year 1757. In 1773 he went back to Italy where he stayed 9 years before returning to India. Lorenzen, Europeans. He wrote many letters, most of them addressed to Stefano Borgia, the secretary of Propaganda Fide from 1770-1789.
David N. Lorenzen, Marco della Tomba and the Brahmin from Banaras: Missionaries, Orientalists, and Indian Scholars, Journal of Asian Studies, vol. 65, no. 1 (February 2006), pp. 115-143.
Bibliography:
Gli scritti del Padre Marco della Tomba, missionario nelle Indie orientali, ed. by A. de Gubernatis (Florence 1878).
Piano della missione del Tibet per la Sac.a Chong.ne di Propaganda [A Plan of the Tibet Mission for the Sacred Congregation of Propaganda]. Vatican Library. Date of writing: 1778.
Details found at Lorenzen, Banaras, p. 141. Note that the "Sacred Congregation of Propaganda" is more commonly known as Propaganda Fide, in Rome. It was under its auspices that the Tibet Mission was founded in 1703.