Frederick, Count of Saarbrücken Count of Saarbrücken from 1118 to 1135 (1100–1135) Parents Sigebert I, count of Saargau NN Children Agnes of Saarbrücken Simon I, Count of Saarbrücken Adalbert II. von Saarbrücken Siblings Sigebert II, count of Saargau Adalbert of Mainz Brunon de Sarrebruck