When did Louis the Pious die?

When did Louis the Pious die? Correct Answer 840

Louis I, byname Louis the Pious, or the Debonair, French Louis le Pieux, or le Débonnaire, German Ludwig der Fromme, (born April 16, 778, Chasseneuil, near Poitiers, Aquitaine —died June 20, 840, Petersau, an island in the Rhine River near Ingelheim ), Carolingian ruler of the Franks.

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