Francesco Gambacorta

Francesco Gambacorta (c. 1300–1355), son of Buonaccorso di Gherardo and nephew of Andrea, was a wealthy Pisan merchant who served five terms as an elder. In 1348 he helped design the Massa delle Prestanze, which consolidated the commune's debts at ten percent, secured by iron revenues from Pisan-held Elba.

After 1349 he oversaw the commune's mounted mercenaries, and when Andrea died in 1351 he inherited leadership of the Bergolini faction and shared power with his brothers.

In 1355 their opponents blamed them for a revolt against Emperor Charles IV. Francesco was arrested, tortured and condemned, and executed with his brothers on 26 May.