Grégoire Debuire began his career in 1997 at Maître Rouillac, in Vendôme, and obtained his auctioneer's diploma the same year. During his career he has worked at Maître Loizillon, Maître Rémi Ader and at the auction house Mercier, in Lille, before joining Pierre Bergé and associates in Brussels.
Grégoire has always had a passion for art history and the art market, and holds a Master's degree in art history and public law regarding the preservation of historic buildings. He has published numerous articles on French architectural heritage, and in 2000 a book about small castles and manor houses in Pas-de-Calais.
Since 2006, he has managed the Valuations department at Pierre Bergé and associates in Brussels, while actively participating in the Paintings, Furniture and Works of Art and Asian Arts departments and organising a sale of Vintage, Modern and Contemporary photography.
Among the most striking items Grégoire has sold at auction are a rediscovered Marguerite Gérard painting, from the famous collection of cardinal Fesch, which sold for €241,500 in 2005, a rare statue N' Gombe, Congo, which was collected in 1906 and then rediscovered in a family collection in 2008 selling for €369,000, and a new study for Jacques Louis David's famous and historic picture 'Le serment du jeu de paume' which had previously belonged to the Baron Vivant-Denon. The owner was not aware of the artist and the historic importance of this work which sold for €193,050 in 2007.
Grégoire has always known how to share his passion for the arts and presented the French television programme 'Côté Maison' which shared extraordinary or curious objects with its viewers. Some of the great moments of the show were then reunited in his work 'Côté Collections' which showed 347 of the most unusual objects. In addition to this, he led a radio show on the art market on RTL.