Johannes Guillaume Christianus Andreas Marijnissen is a Dutch politician of the Socialist Party. He served as Parliamentary leader in House of Representatives May 5, 1994 until June 20, 2008. He was a Member of the House of Representatives from May 17, 1994 until June 17, 2010. He was a member of the Communist Unity Movement of the Netherlands in the early 1970s until in 1972 he became a member of what is now the Socialist Party. He worked as a benchman and welder. He was a member of the city council in Oss, a member of the Provinciale Staten in North Brabant, and the political and parliamentary leader of the Socialist Party. Under his leadership, the Socialist Party became the third largest parliamentary party with the Dutch general elections of 2006. He resigned as Party leader and Parliamentary leader in the House of Representatives on June 20, 2008 for health reasons. 

October 8th, 1952 in Oss (Age 72)