When his father died on 18 February 1724, he became Count of Somls-Braunfeld, Greifenstein and Hungen, Tecklenburg, Kriechingen and Lingen, Lord of Münzenberg, Wildenfels, Sonnewalde, Püttlingen, Dortweiler and Beaucourt.
She was a daughter of Otto of Solms-Sonnewalde (25 June 1550 in Sonnewalde – 29 January 1612 in Sonnewalde) and Anna Amalia of Nassau-Weilburg (12 October 1560 in Weilburg – 6 January 1635 in Estrasburgo).