Work on the cathedral, however, proceeded slowly, because the Emperor commissioned Parler with many other projects, such as the construction of the new Charles Bridge in Prague and many churches throughout the Czech realm.
但是，主教座堂的建造进展得相当缓慢，原因是在此期间皇帝又委托帕尔莱勒同时进行许多其他项目，如在布拉格建造新的查理大桥，以及在捷克全境修建了许多教堂。