Adelaide De Bethune 
Adelaide De was born in 1756. She died at the age of 34 in 1790 in Madrid, Spain.General Notes
SOURCES: "Ancestors/Descendants of Royal Lines" (Contributors: Manuel Abranches de Soveral, Reynaud de Paysac, H.R. Moser <Burke Peerage>), O.Guionneau, E. Polti, A.Terlinden <Genealogy of the existing British Peerage, 1842, and E. Lodge>)
Also: "Ancestors/Descendants of Gonnor de Crepon" http://www.geneastar.org
Adelaide De and Carlo Ferrero were married in a religious ceremony in 1776. They had a daughter named Josephine Ferraro.
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Children
Josephine Ferraro Fieschi
Josephine Ferraro was born on December 23rd, 1779 in Madrid, Spain. She died at the age of 67 on January 18th, 1847.