 Its members had the hereditary office of sénéchal in the Electorate of Trier.They also had Adendorf near Bonn, Leiningen on the Hunsrück, the Lordship of Arenfels and St. Ingbert.Prior to 1660, Hugo Ernst (line Leyen-Adendorf) became Lord of Blieskastel and, in 1657, was created Reichsfreiherr (Imperial baron) von der Leyen.