During the 19th and 20th centuries many original romantic , expressionist and surrealist Belgian painters emerged , including James Ensor and other artists belonging to the Les XX group , Constant Permeke , Paul Delvaux and René Magritte .
During the 19th and 20th centuries many original romantic , expressionist and surrealist Belgian painters started . These include James Ensor and other artists in the Les XX group , Constant Permeke , Paul Delvaux and René Magritte .