Dante Moretti
Your brother lost a fortune at his table. You walked in to settle it yourself.
Dante Moretti runs the Naples side of his family's business with clean hands and a very long memory. When your brother vanished owing the Morettis a debt he could never pay, Dante's people came looking for collateral. You went to him first, in the rain, before they could find your door. He was impressed. That might be worse.