Julien Lahaut, the chairman of the Communist Party of Belgium, is assassinated. The Party newspaper blames royalists and Rexists.

Julien-Victor Lahaut was a Belgian politician and communist activist who served as president of the Communist Party of Belgium from 1945 to 1950. An important figure during the German occupation of 1940–44, he became a vocal advocate for the abolition of the Belgian monarchy during the post-war Royal Question. His assassination in August 1950, at the height of the crisis, was linked to anti-communist and royalist elements inside the Belgian intelligence services by a team of historians in 2015; however, the murder remains officially unsolved.

The Rexist Party, or simply Rex, was a far-right Catholic authoritarian and corporatist political party active in Belgium from 1935 until 1945. The party was founded by a journalist, Léon Degrelle. It advocated Belgian unitarism and royalism. Initially, the party ran in both Flanders and Wallonia, but it never achieved much success outside Wallonia and Brussels. Its name was derived from the Roman Catholic journal and publishing company Christus Rex.