• Born: Between 865 and 867, Flanders
• Married: Est 885
• Died: Abt 10 Sep 918

  Research Notes:

He is named as second of the three sons of Baudouin and his wife Judith in the list of counts of Flanders recorded in the Cartulaire de Saint-Bertin.

He succeeded his father in 879 as BAUDOUIN II "le Chauve" Count of Flanders. According to Rösch, Baudouin II was nicknamed after his maternal grandfather.... From his succession, he came under great pressure from Viking raids, and took refuge in the marshes of Saint-Omer in 883. Baudouin II expanded his territories by occupying the pagi of Mempisc, Courtrai and the Ijzer, seizing control of the counties of Ternois and Boulonnais after 892 as well as the Tournaisis (except for the town of Tournai). Although Count Baudouin at first supported the election of Eudes as king of France in 888, the latter opposed the count's becoming lay-abbot of St Bertin (in 892, in succession to abbot Rudolf and pursued the count to Bruges, although the king was unable to capture the town. The Annales Vedastini record the death "Non Ian 892" of "Rodulfus abba", that "castellani Egfridum comitem" was sent to announce the news to the king, and that in his absence "Balduinum a Flandris…per consilium Evreberti qui nimis fuerat versutissimus" seized the abbacy against the wishes of the king who had promised it to Egfrid. The Annales Vedastini record that "Balduinus" captured Artois in 892. Count Baudouin supported the coronation of Charles III "le Simple" as king of the West Franks in 895, but afterwards supported Zwentibold Duke of Lotharingia. The Annales Vedastini name "Balduinus…comes et Rodulfus frater eius necnon et Ragnerus" when recording that they joined Zwentibold in 895. Baudouin II invaded Péronne in 899 and attacked Vermandois, Artois and Boulogne, but was driven out of Vermandois by 900, although he reconquered it and killed Héribert II Comte de Vermandois in revenge for the death of his brother Raoul.

Count Baudouin also controlled the abbeys of St Vaast and St Bertin.

The Annales Blandinienses record the death in 918 of "Balduvinus comes", specifying that he was buried at "Blandinio". An undated charter, dated to [962], recording the last wishes of "marchysi Arnulfi", notes that "pater meus et mater mea" were buried in the abbey of Saint-Pierre de Gand. His territories were divided between his two sons on his death. ²