Arrrrr - Prvateers Ahoy
Well if he really wants to claim he is still part of the Spanish Main, and not subject to the new fangled post 1848 laws, then there are bound to be old privateering commisions, and he won't be protected by the Paris Declaration Respecting Maritime Law of 16 April 1856 that abolished privateering.
So up anchor me hearties, I knows of a right plump galleon that's ripe for plunder, and awash with a brace o' strumpets to boot.