[34] Hardt, so v.w. Haardt.
Brockhaus-1911: Hardt
Herder-1854: Hardt · Dürkheim an der Hardt
Meyers-1905: Hardt, Münsinger · Münsinger Hardt · Hardt [3] · Hardt [1] · Hardt [2]
Pataky-1898: Hardt, Frl. Charlotte · Hardt-Stummer, Baronin Amalia Crescentia
Pierer-1857: Hardt [1] · Hardt von Wöllenstein