The origin of the Baron is a mystery. Some think he was taken by the Setites with his sister Brigette to Haiti. Certain Samedi believe he is an Antediluvian himself who has taken the identity of a Haitian death spirit. The Baron himself mentions an ancient precursor of his line, who might by one of the Drowned Legacies, and who now rests in torpor to keep "the tide" at bay.
Augustus Giovanni and the Baron hated each other ever since their meeting in Venice in the 19th century. The Baron was supposed to deliver the True Vessel to Augustus, but was raided by Setites on his way.
Somehow the Baron managed to leave the Giovanni Mausoleum with his unlife intact a few minutes after telling it personally to Augustus himself. The Baron, still active in the bloodline's affairs, refuses to discuss the "deal" that he had with Augustus Giovanni, but it must have been something of gravity for the mutual dislike to persist.
Conversely, his rivalry (such that it is) with the Capuchin is reportedly amicable. The Samedi speak of the two trading stories and knowledge long into the nights.
After the Gangrel left the Camarilla, the princedoms all around the Caribbean regions have been receiving emissaries on "goodwill missions" from the Baron. The methuselah suggests that the Samedi have a greater role in vampiric history and future than most Cainites suspect. What that may be, the Baron refuses to specify, dismissing further questions with a wave of his rotting hand.
The Baron was described as five and a half feet tall black man, dressed in formal wear that looks all the more horrific because he is a decaying corpse. His eyes run down his face and he smells like an open mass grave, and his exposed muscles are all gray and ratty and hanging off him in shreds.
The Baron is aware of the Patron of Voodoo of the same name and deliberately styles himself after him.