sentences:  Jörg von der Leyen wed a daughter from the patriarchal Zweibrücken noble family of Mauchenheim.Since this house had a share in the ownership of Castle Blieskastel, Gries and the other villages in the "Amt" became part of the "Oberamt" of Blieskastel, and remained so for roughly 300 years, until the French Revolution.Through Georg I von der Leyen's marriage to Eva von Mauchenheim in 1456, the House of Leyen came into ownership of holdings in the Bliesgau, and once it had taken charge of an inheritance in 1486, it also acquired ownership of a share in Blieskastel Castle.