Belgian collaborators with Imperial Germany

Marcel Gilles Jozef Minnaert (12 February 1893 – 26 October 1970) was a Belgian-Dutch astronomer. He was born in Bruges and died in Utrecht. He is notable for his contributions to astronomy and physics and for a popular book on meteorological optics: Light and colour in the open air, first published in English in 1940.

Paul van Ostaijen (22 February 1896 – 18 March 1928) was a Belgian Dutch-language poet and writer.

René De Clercq, born René Desiderius Declercq (Deerlijk, Belgium, 14 November 1877 – Maartensdijk, Netherlands, 12 June 1932), was a Flemish-Dutch political activist, writer, poet, and composer.