Giacomo de Franchi was a Genoese merchant and slavehoder active during the late fourteenth and early fifteenth century. He was born as Giacomo Sacco and assumed the de Franchi surname after entering into their albergo at the turn of the fifeteenth century.
Cristoforo de Revellino, register 18, 1401, fol. 356r
Giuliano Canella, register 4, 1414–1415, fol. 260r
Giuliano Canella, register 5, 1415–1417, fol. 411r–v