Pietro Querini, commonly called Pezzagallo,^[1] was a member of the patrician House of Querini. He served as Bailo of Negroponte, one of the most senior appointments in the Republic of Venice's overseas empire,^[1] in 1306–1308.^[2] On his return he was tried and fined with 500 ducats because he had allowed his son Nicolo to maltreat a member of the local Jewish community.^[1] In 1309 he was again convicted and fined because he had resisted a search for concealed weapons by the Signori di Notte and assaulted the responsible officer.^[3] Along with his brother Marco Querini he was involved in the Tiepolo conspiracy of 1310.^[1]

• Hazlitt, W. Carew (1860). The Venetian Republic: Its Rise, its Growth, and its Fall, 421–1797. Volume II. London: Smith, Elder & Co. ISBN 978-0-404-03194-7.
• Hopf, Carlo (1856). Dissertazione documentata sulla storia di Karystos nell'isola di Negroponte, 1205 - 1470 (in Italian). Translated by G. B. de Sardagna. Venice: Pietro Naratovich.