sentences:  His brother the governor, who would succeed Frederick as Landgrave William VIII of Hesse-Kassel, though by background a distinguished soldier, was likewise a great success locally.There are very few physical remainders of Frederick in Hesse today; one of them is his large Royal Swedish paraph (FR) over the old door of the University of Marburg's former riding hall, now the Institute of Physical Education.On 31 May 1700, he married his first wife, Louise Dorothea, Princess of Prussia (1680–1705), daughter of Frederick I of Prussia (1657–1713) and Elizabeth Henrietta of Hesse-Kassel (1661–1683).