The "Metropolitan Cathedral of Saints Vitus, Wenceslaus and Adalbert" is a Roman Catholic metropolitan cathedral in Prague, the seat of the Archbishop of Prague. Until 1997, it was dedicated only to Saint Vitus and is still commonly named only as "St Vitus Cathedral". It is the largest and the most important temple in Prague.

In 925, Prince Wenceslas (Václav) founded a Romanesque rotunda which after 1060 was converted into a basilica. The importance of the church grew especially after the establishment of the Prague bishopric in 973. The foundation stone for the current building was laid in 1344 by Emperor Charles IV, on the site of a 10th-century rotunda built by Wenceslas. Its first builders were Matthias of Arras and later Peter Parler. The church was solemnly consecrated in 1929.

The eastern end of the cathedral has late-Gothic vaulting dating from the 14th century. In the center, opposite the pulpit, lies the ornate Royal Mausoleum (1571–89). The biggest and most beautiful of the numerous side chapels is Parler’s Chapel of St Wenceslas. Its walls are adorned with gilded panels containing polished slabs of semiprecious stones.

Its treasures range from the 14th-century mosaic of the Last Judgement and the tombs of St Wenceslas and Charles IV to the baroque silver tomb of St John of Nepomuk, the ornate Chapel of St Wenceslas and art nouveau stained glass by Alfons Mucha. Also, there is a wooden sculpture of the crucifixion (1899) by František Bílek.

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