Adalbert, Duke of Lorraine

Adalbert (1000 – 11 November 1048 in Thuin) was the Duke of Upper Lorraine from 1047 until his death. He was the first son of Gerard de Bouzonville (Gerhard), Count of Metz, and Gisela (Gisella).

Gothelo I, Duke of Lower Lorraine and Upper Lorraine, died in 1044 and was succeeded by his son Godfrey II in Upper Lorraine but was refused Lower Lorraine. Irritated, Godfrey rebelled in that same year and devastated his suzerain's lands in Lower Lorraine. He was soon defeated and Adalbert named in his place in Upper Lorraine. Godfrey, however, continued to fight for all Lorraine and Adalbert died in battle against him at Thuin on 11 November 1048. He had no known children, and Henry III, Holy Roman Emperor immediately nominated his brother Gerhard to succeed him.