Constance De Toucy 
General Notes
SOURCES: "Ancestors/Descendants of Royal Lines" (Contributors: Manuel Abranches de Soveral, Reynaud de Paysac, H.R. Moser <Burke Peerage>, L. Orlandini, O.Guionneau, L.B. de Rouge, E. Polti, A.Terlinden <Genealogy of the existing British Peerage, 1842>, and E. Lodge) http://geneastar.org.
‌Constance De and Robert I De+ were married in a religious ceremony in 1200. They had a daughter named Blanche De.