Polish participation in holy wars and crusades was motivated by the rationale provided by the Piast dynasty which justified it in terms of their dyna… - Darius von Guttner-Sporzynski

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Polish participation in holy wars and crusades was motivated by the rationale provided by the Piast dynasty which justified it in terms of their dynastic interest. Piast involvement in the crusading movement cannot be explained by the call to crusade made by Pope Urban II in 1095 but rather as an evolutionary fragment of the development of the institution of crusade.