- This article is a stub. You can help the Gabriel Allon Wiki by expanding it.
Anton Orsati was a don on the island of Corsica. He once killed another don over an argument about failure to pay for the labor of the Signadora's husband. He employed the Christopher Keller and others as assassins. His band of professionals was considered to be reliable. They killed on contract for the very rich.
Orsati sent Keller to kill a man. When the Englishman returned to Corsica, Orsati had other missions for him. Eventually, Keller failed to complete one of the missions and confessed his failure to Orsati. After Keller explained, Orsati offered to help him kill a worse villain.