Concordat of Worms
Worms Cathedral, a highrising building, was built from about 1130 to 1181. It houses the tombs of Emperor Conrad's II family and also got its status because of its size and glory. The church was the site of the nomination of Pope Leo IX in 1048 and of the conclusion of the 1122 Concordat of Worms ending the Investiture Controversy. In 1235 the marriage of Emperor Frederick II with Isabella of England took place here.