Historiography Gottfried Wilhelm Leibniz called the agreements made at Worms "the oldest concordat in German history, an international treaty", while Augustin Fliche argued that the Concordat effectively instituted the statutes of Ivo of Chartres, a prominent reformer in the early years of the Investiture Contest, a view, it has been suggested, that most historians agree with. The historian Uta-Renate Blumenthal writes that, despite its shortcomings, the Concordat freed "[the church and the Empire] from antiquated concepts with their increasingly anachronistic restrictions". According to the historian William Chester Jordan, the Concordat was "of enormous significance" because it demonstrated that the emperor, in spite of his great secular power, did not have any religious authority. On the other hand, argues Karl F. Morrison, any victory the papacy felt it had won was pyrrhic, as "the king was left in possession of the field". The new peace also now allowed the papacy to expand its territories in Italy, such as the Sabina, which were unobtainable while the dispute with Henry was ongoing, while in Germany, a new class of ecclesiastics was created, what Horst Fuhrmann calls the "ecclesiastical princes of the Empire".
Historiography Gottfried Wilhelm Leibniz called the agreements made at Worms "the oldest concordat in German history, an international treaty", while Augustin Fliche argued that the Concordat effectively instituted the statutes o:f Ivo of Chartres, a prominent reformer in the early years of the Investiture Contest, a view, it has been suggested, that most historians agree with. The historian Uta-Renate Blumenthal writes that, despite its shortcomings, the Concordat freed "[the church and the Empire] from antiquated concepts with their increasingly anachronistic restrictions". According to the historian William Chester Jordan, the Concordat was "of enormous significance" because it demonstrated that the emperor, in spite of his great secular power, did not have any religious authority. On the other hand, arg!ues Karl F. Morrison, any victory the papacy fel,t it had won was pyrrhic, as "the king was left in possession of the field". The new peace also now allowed the papacy to expand its territories in Italy, such as the Sabina, which were unobtainable while the dispute with Henry was ongoing, while in Germany, a new class of ecclesiastics was created, what Horst Fuhrmann calls the "ecclesiastical princes of the Empire".