This is from the webpage www.genealogy.eu Now I can read that Willliam died at Rouen in 1087. He married Matilda of Flanders in 1053. Robert was their son b. 1054. Were the rest of these Robert's descendants. The date ca. 1101 k.a. 1028 is confusing. This is confusing to say the least. If Henry Beauclerc were the great-grandson of Willliam Duc de Normandie then William Rufus would be his father. I think William married Matilda of Flanders in 1027 right at Falaise. The next line down is William I's son, and then his son, Richard possibly is also a son of Willliam Clito. Which would make Henry I actually William's greatgreatgrandson. Robert III and Sybille de Conversano were the parents of William Clito. Then it looks like William Rufus, and Richard are Robert's siblings. Duke WILLIAM I "The Conqueror" of Normandy, King of England (1066-87) -cr Westminster Cathedral 24.12.1066, *Falaise 1027, +nr Rouen 7.9.1087, bur St.Stephen Abbey, Caen; m.1053 Mathilde of Flanders (*1032 +2.11.1083) G1. Duke Robert III "Curthose" of Normandy, *1054, +Cardiff Castle 10.2.1134; m.Sybille de Conversano H1. William Clito, Count of Flanders, *1101, +k.a.1028; 1m: Adelicia de Montferrat; 2m: 1123 (div 1124) Sybille d'Anjou (*1112 +1165) G2. Richard, *ca 1055, +New Forest ca 1081 G3. WILLIAM II Rufus, King of England (1087-1100), *1056, +New Forest 2.8.1100, bur Winchester Cathedral. HELP. Le