Marie Louise De Montomorency-Luxembourg 
Marie Louise De was born on September 3rd, 1716. She died at the age of 47 on April 18th, 1764.
‌Marie Louise De and Louis Ferdinand De were married in a religious ceremony on January 15th, 1736. They had a son named Joseph De.
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Children
Joseph De Croy
Joseph De was born on October 12th, 1744. He died at the age of 95 on October 14th, 1839.