Claim: Dutch leaders Louis and Henry of Nassau and their older brother William the Silent, Prince of Orange all survived in the Battle of Mookerheyde after winning convincingly against the Spanish forces.
Evidence: In the Battle of Mookerheyde, Spanish forces defeated Dutch forces composed of German mercenaries on 14 April 1574 during the Eighty Years' War near the village Mook and the river Meuse not far from Nijmegen in Gelderland. Two leaders of the Dutch forces, brothers of William the Silent, were killed: Louis of Nassau (born 1538) and Henry of Nassau-Dillenburg (born 1550).