Dodo was a crusader who was one of the many leading knights from Walloon and the Lotharingian territories that joined the army of Godfrey of Bouillon in the First Crusade. These included Godfrey's brothers and their cousin Baldwin of Le Bourg, Baldwin II, Count of Hainaut, Rainald (or Reinhard), Count of Toul, Warner, Count of Grez, Baldwin of Stavelot, Peter of Stenay, and the brothers Henry and Godfrey of Esch. Dodo was known to have been at the siege of Nicaea in 1097.