Bartolomeo Marchionni arrived circa 1468 at Lisbon as an agent to the Cambini. In a long career he become the most successful merchant and one of the richest men in Lisbon at the time. He was the chief merchant in sugar from Madeira islands and participated extensively in the voyages to Guinea, Brazil, Madeira, and would finance several voyages to India  In 1500, in a joint enterprise with Dom Álvaro of Portugal and Girolamo Sernigi, Bartolomeo Marchionni sent a ship second fleet to India that discovered Brazil under the command of Pedro Álvares Cabral. In 1501 he financed the third Portuguese armada (expedition) to India, under a joint private initiative with Portuguese Dom Álvaro of Braganza. The small four vessel fleet departed from Lisbon in 9 or 10 March 1501, under command of João da Nova, having Diogo Barbosa as Dom Álvaro agent. They established a feitoria (trading post) in Cananor, leaving there a factor. He was a friend of Americo Vespucci about whom he wrote, after returning to Seville that he "had taken hard work and little benefit." he was followed by is son Pêro Paulo Marchionni, himself a shipowner. In the 1503 fleet to India under Francisco and Afonso de Albuquerque, Giovanni da Empoli was sent as a commercial agent of the firms Gualterroti and Frescobaldi and also Bartolomeo Marchionni.
- K. J. P. Lowe, "Cultural links between Portugal and Italy in the Renaissance", p.8, Oxford University Press, 2000
- "The voyage of Pedro Álvares Cabral to Brazil and India: from contemporary documents and narratives" p.146, Issue 81 of Works issued by the Hakluyt Society, William Brooks Greenlee, Asian Educational Services, 1995, ISBN 81-206-1040-7
- Teresa Lacerda "Os Capitães das Armadas da Índia no reinado de D. Manuel I – uma análise social". Lisboa, 2006 (in Portuguese) 
- Sanjay Subrahmanyam, "The Career and Legend of Vasco da Gama", p.182, New York: Cambridge University Press, 1997, ISBN 978-0-521-47072-8