Sybil married Clito, Count of Flanders William 1123; divorced Yes, date unknown. William (son of Curthose, Duke of Normandy Robert and of Conversan, Sybilla) was born 25 Oct 1102, Rouen, Caux, Normandy; died 28 Jul 1128, Abbey of St. Bertin, Saint-Omer, Flanders; was buried , Abbey of St. Bertin, Saint-Omer, Flanders. [Group Sheet]