Possible Clues:

• Won about the whole of nothing in Belgium
• Belgian language related to French
• Southern Belgian
• A French-speaking Belgian?
• ... was successful about greeting in pseudo-French, not Flemish
• It's built with nothing on it in Belgium
• Native of S Belgium or N France area
• French-speaking Belgian
• The barrier with nothing on it in Belgium
• Wife almost let on being a Francophone