Bernard

When Louis’s nephew, King Bernard of Italy, challenged the emperor’s authority in 817, Louis swiftly quashed the rebellion, blinding Bernard and exiling the other conspirators. To forestall further dynastic challenges, Louis had his half-brothers, Drogo, Hugo, and Theoderic, tonsured and placed in monasteries.

…was succeeded by his son Bernard (812–817). Louis, however, replaced Bernard with his own son Lothar I (817–855); Bernard revolted, but he was captured and blinded, and he died in 818. Lothar, like his father and grandfather, was more interested in Frankish politics, particularly during the Frankish civil wars of…