Adalbert[a] (died 13 May 841) was Frankish nobleman with lands scattered throughout the Carolingian Empire. He was one of the most trusted advisors of Emperor Louis the Pious. By 838, he was the count of Metz. He was strongly opposed to the ambition of the emperor's son, Louis the German, for a large kingdom in East Francia. After the elder Louis's death, he supported Emperor Lothar I and it was in the latter's service that he was killed in battle with Louis the German.
- ^ Depreux 1997, p. 69.
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