3. Robert I le Frison of Flandern (1033 - 1093), hertig i Flandern, Frankrike.
Born: ABT 1012. Acceded: 1035. Died: 1 SEP 1067, Lille, France. Notes: Entered into hostilities with Emporer Otho II and aquired from that monarch Valenciennes and the Isles of Zealand. He subseqently further increased his territories by another rich accession, that of the citadel of Ghent. Father: Baldwin IV Fair Beard of Flanders, Earl/Count of Flanders, b. ABT 980. Mother: Ogive of Luxemburg. Married 1028 to Capet, Adela (Alix) of France, Princess. Child 1: Matilda of Flanders, b. ABT 1031. Child 2: Flanders, Baldwin VI the Peaceable of, Count of Flanders &Artois. Child 3: Robert I of Flanders, Count of Flanders &Artois, b. ABT 1033. (Directory of Royal Genealogical Data, Hull, England)