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Some mozni (Magnates) descending from past tribal dynasties regarded themselves as co-proprietors of Piast realms, even though the Piasts attempted to deprive them of their independence. These mozni (Magnates) constantly sought to undermine princely authority.:75, 76 In Gall Anonym's chronicle, there is noted the nobility's alarm when the Palatine Sieciech "elevated those of a lower class over those who were noble born" entrusting them with state offices. (Manteuffel 1982, p. 149)

What did some Mozni regard themselves with?
co-proprietors of Piast realms