Floris De Berlaymont 
Floris De was born about 1560. Floris De's father was Charles De Berlaymont and his mother was Adrienne De Ligne. He had a brother named Lancelot De. He was the younger of the two children. He died in 1620.General Notes
SOURCES: "Ancestors/Descendants of Royal Lines" (Contributors: Reynaud de Paysac, H.R. Moser <Burke Peerage>), O.Guionneau, E. Polti, A.Terlinden <Genealogy of the existing British Peerage, 1842, and E. Lodge>)
They had a daughter named Marie Marguerite De.
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Children
Marie Marguerite De Berlayment
Marie Marguerite De was born about 1602 in Brussels, Belgium. She died on March 17th, 1655.