"Pepin II, called the Younger (823 – after 864 in Senlis), was King of Aquitaine from 838 as the successor upon the death of his father, Pepin I. Pepin II was eldest son of Pepin I and Ingeltrude, daughter of Theodobert, count of Madrie. He was a grandson of the Emperor Louis the Pious.
Pepin was elected king upon his father's death by the nobles of Aquitaine who were keen to establish their independence from the Empire. However, his grandfather Louis the Pious had appointed his son Charles the Bald, Pepin's uncle who was about the same age, as King of Aquitaine in 832 when he (nominally) dispossessed Pepin’s father Pepin I, and eventually contested the kingship on Pepin I’s death in 838. Pepin had thereafter been at war with his half-uncle Charles. Louis the Pious fully disinherited him at Crémieu and then at Worms in two subsequent divisions of the empire." - (en.wikipedia.org 11.08.2021)
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