 This increased presence of central authority might have chafed the aristocracy, opening the door for a palace coup directed against Charlemagne.Additionally, both the Royal Frankish Annals and Einhard cite Charles' then-current wife Fastrada, who seems to have been poorly received by many members of court, as a factor in the rebellion.Both of the major uprisings against the throne during Charles' reign—Hardrad's in 786 and Pepin's in 792—occurred during Fastrada's tenure as his wife and queen.