Xavier de Theux de Meylandt et Montjardin

Xavier Marie Georges Théodore De Theux de Montjardin was born in Sint-Truiden, Limburg, Flemish Region, Belgium on 23 September 1838.^[2]

De Theux obtained a Doctorate of Law.^[3] He married Eugénie de Thysebaert in Namur on 18 May 1865.^[2]

Joining the Liège Bibliophile Society in 1863, he later presided over the Society of Bibliophiles of Belgium (French: Société des bibliophiles de Belgique) in 1865.^[3] Xavier de Theux served as president of the society, with Ferdinand Van Der Haeghen as vice president, Gustave Hagemans as treasurer, and Jules Delecourt as secretary.^[4]

Xavier de Theux died in Brussels on 13 December 1896.^[3]