Juliana of Hesse-Darmstadt Countess of East Frisia (1606–1659) Parents Magdalene of Brandenburg Louis V, Landgrave of Hesse-Darmstadt Children Count Ferdinand Edzard of East Frisia Enno Louis, Prince of East Frisia George Christian, Prince of East Frisia Siblings Frederick of Hesse-Darmstadt John of Hesse-Braubach Elisabeth Magdalena of Hesse-Darmstadt Sophie Agnes of Hesse-Darmstadt George II, Landgrave of Hesse-Darmstadt Anne Eleonore of Hesse-Darmstadt Heinrich von Hessen-Darmstadt Ludwig von Hörnigk Partners Ulrich II, Count of East Frisia