John I of Nassau-Weilburg Count of Nassau-Weilburg (1355-1371) (1309–1371) Parents Agnes of Hesse Gerlach I of Nassau Children Philip I of Nassau-Weilburg Johannetta of Nassau-Weilburg Margaret of Nassau-Weilburg Joan of Nassau-Weilburg John of Nassau-Weilburg Schonetta of Nassau-Weilburg Agnes of Nassau-Weilburg Siblings Adolf I of Nassau-Wiesbaden-Idstein Gerlach of Nassau Adelaide of Nassau Rupert of Nassau-Sonnenberg Mary of Nassau Elisabeth of Nassau Crato of Nassau-Sonnenberg Agnes of Nassau Partners Gertrud of Merenberg Joan of Saarbrücken