They were present at Ermesinde's wedding, at the coronation of Henri IV and at the signing of John the Blind's marriage contract.
[1] At the beginning of the 14th century Arnold of Pettingen married Marguerite of Rousy, the great granddaughter of Ermisinde.
He had a son, Arnold the Young, whose daughter Irmengard, by marrying Jean de Créhange, associated the Lords of Pettingen with his renowned family.
However, as a result of a decree made at the Great Council of Mechelen in 1503, half of the treasures were returned and the castle was reconstructed in its present form.
The ruins, which belonged to the house of Créhange, were inherited by the Comtes de Lapérouse whose descendants sold it to the Duke of Arenberg in 1837.