Baldassare Gattilusio was a Genoese merchant who was active in the eastern Mediterranean in the mid-fifteenth century. He was born as Baldassare de Porta and changed his surname after entering into the Gattilusio albergo in the late 1440s.
Baldasare Gateluxio domini Nicolai... habitator Mitilleni
Baldasari Gateluxio domini Nicolai alias de Porta
Baldasari Gateluxio alias de Porta domini Nicolai
Domenico de Algario, filza 1, series I, nr. 32
Domenico de Algario, filza 1, series I, nr. 58