He recorded some of the earliest chess games known in their entirety.
His games, all given with anonymous opponents ("NN", for the Latin nomen nescio), were quite possibly constructs, but served as examples of brilliant combinations.Mikhail Botvinnik considered Greco to be the first professional chess player.Greco was also known in Italy as il Calabrese ("the Calabrian").
He was born in Celico, a village near Cosenza.
His parents were not necessarily Greek.
The name "Greco" was given to people who originally came from that part of Calabria where they spoke a Greek dialect, and lived in areas where the dialect was Latin-based, like in the Cosenza area.