In a capitulary of 802, Emperor Charlemagne demanded that his subjects take a new and a much more expansive and demanding oath than before. The oath of 802 extended the list of prohibited activities: subjects were not to impede the emperor’s orders, not to shelter the emperor’s runaway slaves or serfs, and not to ignore the emperor’s summons to war. The oath also required Charlemagne’s imperial subjects to “strive…to live entirely in the holy service of God in accordance with the precept of God”.