Henry Casimir I of Nassau-Dietz

Henry Casimir I of Nassau-Dietz (21 January 1612 – 13 July 1640) was count of Nassau-Dietz and Stadtholder of Friesland, Groningen and Drenthe.
Life.
He was born in Arnhem, the eldest son of Ernst Casimir of Nassau-Dietz and Sophia Hedwig of Brunswick-Lüneburg, and, like his father, died in battle.
Henry Casimir was christened at Arnhem. The English representative, Sophia Hedwig being the niece of the queen Anne of Denmark, was Sir Edward Cecil. He brought gifts of a cupboard of gilt plate, a diamond necklace with a locket, horses, and an embroidered petticoat for Sophia Hedwig.
On 12 July 1640, he was wounded in Sint Jansteen at the battle of Hulst. He died the next day. Hendrik Casimir is buried in Leeuwarden, and was succeeded in his titles by William Frederick, Prince of Nassau-Dietz. His death at Hulst, aged 28, caused a series of memorials to his name and the battle in which he died. The Rijksmuseum keeps a blood-stained shirt in the collection supposedly worn by him when he was wounded. Similarly, the bullet hole in his father's hat is also kept there for posterity.