There is some disagreement over who Lafosse's parents and ancestors were. Lafosse says he was born on 21 April 1958 in the Ville de Bruxelles district, and that his parents were Baron Gustave Joseph Fernand Clément Lafosse and Princess Renée Julienne Stewart. In 2002, Brussels authorities stated that this certificate is a forgery, and that they have a birth certificate showing that Lafosse was born in Brussels on 21 April 1958, in the Watermael-Boitsfort district to Gustave Joseph Clément Fernand Lafosse, a shopkeeper, and Renée Julienne Dée, a business employee.