Complex sentence: She was married on 17 April 1738 to the Austrian Imperial Quartermaster, Prince Joseph of Saxe-Hildburghausen, but it ended in divorce in 1757, having had no children.
Split into simpler sentences: She was married for a short time to the Austrian Imperial Quartermaster, Prince Joseph of Saxe-Hildburghausen, but it ended in divorce. The couple married on 17 April 1738 and 1757 they divorced having had no children.