Belgian author, art critic, and attorney who was simply a founder of L’Art Moderne, a every week, nineteenth-century publication. He was created in Brussels, Belgium. He became secretary of Les XX, several prominent Belgian performers, in 1884. He founded a Brussels creative society known as La Libre Esthetique in 1894. He and his wife Madeleine had been good friends and neighbours from the Belgian-British composer Poldowski (Regine Wieniawski). His creative firm, Les XX, sponsored an annual display of the task of international performers. French Impressionist painter Claude Monet got component in the group’s 1886 and 1889 exhibitions.