ヴォルムス協約
The Concordat of Worms did not end the interference of European monarchs in the selection of the pope. Practically speaking, the German kings retained a decisive voice in the selection of the hierarchy. All kings supported King John of England's defiance of Pope Innocent III ninety years after the Concordat of Worms in the matter concerning Stephen Langton. In theory, the pope named his bishops and cardinals. In reality, more often than not, Rome consecrated the clergy once it was notified by the kings who the incumbent would be. Recalcitrance by Rome would lead to problems in the kingdom. For the most part it was a no-win situation for Rome. In this, the Concordat of Worms changed little. The growth of canon law in the Ecclesiastical Courts was based on the underlying Roman law and increased the strength of the Roman Pontiff.