context: Baudouin is the son of Eustace II, Count Boulogne and Idea of ​​Lorraine (daughter of Godefroy III, Duke of Lower Lorraine), and sister of Eustace III, Count Boulogne and Godefroy of Bouillon. As the youngest brother, Baudouin originally intended to pursue a career in the church, but he gave up around 1080; according to Willelmus of Tire, who lived in the 12th century and did not know Baudouin personally: "in his youth, Baudouin also preserved liberal arts. He became a scholar, it is said, and because of his famous offspring, had the benefits commonly called prebend in churches in Reims, Cambrai and Liège. " After that he lived in Normandy, where he married Godehilde (or Godvera) de Toeni, daughter of Raoul de Conches from the Anglo-Norman noble family (and was previously engaged to Robert de Beaumont's wife). He returned to Lower Lorraine in order to control the Verdun duchy (previously held by Godefroy).
question: Who is Baudouin I's mother?
answers.text: Idea of ​​Lorraine