Isabell de Montfort

     Isabell de was born circa 1057 in Flanstead, parish of St. Alban's, Hertfordshire, England. She was the daughter of Simon de Montfort I and Isabel de Broyles. Isabell de married Ralf de Tosni II, son of Roger de Tosni and Adelaide Borrell of Barcelona, circa 1076 in Il de France, France.