Georg Donatus, Hereditary Grand Duke of Hesse and by Rhine

Hereditary Grand Duke Georg Donatus of Hesse and by Rhine (8 November 1906 - 16 November 1937) was the first child of Ernst Ludwig, Grand Duke of Hesse and by Rhine and Eleonore, the younger paternal half brother of Elisabeth, and the older brother of Louis. He married Cecilie and had three named children and a fourth unnamed son: Ludwig, Alexander and Johanna.