The younger brother of Princess Charlene of Monaco, Wittstock is a South African businessman who moved to Monaco after his sister married the Sovereign.
He is married to Roisin Gavin, an ex-dancer, with whom he has a daughter, Kaia-Rose. Gareth is very active in Monaco society. He regularly attends key events, including the Formula 1 Grand Prix and the Bal de la Croix-Rouge.
