Tommaso de Marini was a slaveholder and citizen of Genoa who was active during the middle of the fifteenth century. He was born named Tommaso Castagna and assumed the de Marini surname after entering into their albergo.
The slaveholder named Stefano Doria enters into an agreement with a merchant from Mallorca named Gaspar Safortesa to transport enslaved Muslims from Chios to Mallorca. The enslaved persons are to be delivered to Pedro Safortesa, the brother of Gaspar. Gaspar agrees to pay the same freight that other Mallorcan merchants had paid a certain Giovanni de Marini for earlier shipments of the same type on his ship.
The slaveholder named Gherardo Vivaldi leases out an enslaved Ruthenian child named Brigida, who is approximately 16 years of age, to a certain Gregorio Stella, for a term of five years. The enslaved Brigida was immediately manumitted on the condition that she serve the term of service for Gregorio.
The slaveholder and furrier named Antonio Carena manumits an enslaved Bulgarian child named Gregorio, who is approximately 17 years of age, after he finishes a four-year term of service to Giacomo Salvago, for which Antonio is paid the sum of 22 ducats and 5 zigliati in currency of Chios.