The chronicler Gregory the Priest says that Baldwin was the brother of Prince Raymond of Antioch and therefore the son of Duke William IX of Aquitaine.
Baldwin’s fiefdom was in the northern border region of the Crusader states where the population was largely Armenian Christians.
However Baldwin’s overlord, Count Joscelin II of Edessa, Leo’s nephew, helped the Armenians defeat the Antiochene army.
They entered the city but could not take the citadel before Nur ad-Din, atabeg of Aleppo surrounded Edessa with a large force.
[4] The troubadour Marcabru may refer to Baldwin in the final stanza of his Vers del lavador, when he asks God to "conduct the count to His washing-place and lay his soul to rest".