Gueuzerie Tilquin is a Belgian lambic beer blendery based in Bierghes, Brussels, founded in 2009 by Pierre Tilquin. Gueuzerie Tilquin is the only lambic blendery in the mainly French-speaking, southern region of Wallonia. Tilquin produces blends of one, two, and three-year-old lambics with wort acquired from Boon, Lindemans, Girardin, and Cantillon for the Oude Gueuze Tilquin à L'Ancienne.