Berthold married Ida De Flanders, [COUNTESS OF DAM in 1183. Ida (daughter of Matthieu D' Alsace, [COUNT OF BOULOG and Marie Countess Of Mortain & Boulog, [ABBESS OF ROMSE) was born about 1161 in Of, BOULOGNE, Pas-De-Calais, France; died in 1216; was buried in , BOULOGNE, Pas-De-Calais, France. [Group Sheet] [Family Chart]