Henry of Nassau-Dillenburg
He was the twelfth and last child of William the Rich and Juliana of Stolberg-Wernigerode, and was raised a Lutheran. He studied in Louvain and Strasbourg. He and his brothers William and Louis joined the Huguenot army of the Prince of Condé and took part in the battle of Montcontour (3 October 1569). Henry fell in the battle of the Mookerheyde at the age of twenty-three together with his elder brother Louis. Their bodies have never been recovered.
Article in Grote Winkler Prins, Encyclopedie in twintig delen, 7th edition, Elsevier, Amsterdam (1972).