Elevation of the Westphalian county of Arenberg to princely status and concession of this dignity to the countess Marguerite de La Marck et d’Arenberg, widow of Jean de Ligne, and to his son Charles d’Arenberg, and to the brothers and sisters of the latter.
Arms: neither description nor drawing.
Sources: HHStA RR/MII.9, 538.
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