Lucretia von Hardtz was Jürgen von Magdeburg's most trusted vassal and retainer, serving him directly in Magdeburg as Prince during his absence, and acting as his marshal and the Gross-Komtur of the Order of the Black Cross. She accompained Jürgen in all his wars until he was assassinated on Hardestadt's orders. Resentful of such a cowardly act, she joined the Anarch Revolt and later the Ventrue antitribu.