Louise Marie De Melun 
Louise Marie De was born in September 1666. She died at the age of 17 on October 31st, 1683.General Notes
SOURCES: "Ancestors/Descendants of Royal Lines" (Contributors: Manuel Abranches de Soveral, Reynaud de Paysac, H.R. Moser <Burke Peerage>), O.Guionneau, L.B. de Rouge, E. Polti, A.Terlinden <Genealogy of the existing British Peerage, 1842, and E. Lodge>) http://geneastar.org.
‌Louise Marie De and Armand De were married in a religious ceremony on November 2nd, 1680. They had a son named Paul Francois De.
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Children
Paul Francois De Bethune
Paul Francois De was born on August 7th, 1682. He died at the age of 76 on February 14th, 1759.