Gertrud married Flanders, Robrecht I "De Fries" Count of in 1063. Robrecht (son of Flanders, Baudouin V Count of and France, Countess of Contentin Adèle (Aelis) of) was born about 1033 in Of, Flandres, Belgium; died on 13 Oct 1093 in Kassel, Germany. [Group Sheet] [Family Chart]
