Maurice Frederick of Nassau-Siegen

Count Maurice Frederick of Nassau-Siegen (19 January 1621 – 17 June 1638), , official titles: Graf zu Nassau, Katzenelnbogen, Vianden und Diez, Herr zu Beilstein, was a count from the House of Nassau-Siegen, a cadet branch of the Ottonian Line of the House of Nassau. He served as an officer in the Dutch States Army. In the propaganda for the House of Orange, he is regarded as one of the twelve heroes of the House of Nassau who gave their lives in the Eighty Years' War for the freedom of the Dutch people.