sentences:  After the death of their father, in 1675, Henry and his brothers co-ruled the duchy of Saxe-Gotha-Altenburg.On 24 February 1680, after the treaty of division of the family lands with his brothers, he received Saxe-Römhild, which consisted of the cities of Römhild, Königsberg (now in Bavaria), Themar, Behrungen and Milz and the fiefdom of Echter.In Darmstadt on 1 March 1676, Henry married Marie Elisabeth of Hesse-Darmstadt, daughter of Louis VI of Hesse-Darmstadt.