 The only indication of the original decoration of the cathedral can be seen on the neighbouring campanile, which is clad in alternating bands of local white travertine and blue-green basalt stone in a manner similar to the entire Orvieto Cathedral.During the mid-16th century, the cathedral was controlled by Cardinal Gambarra, scion of a wealthy Italian family, who paid for extensive reconstruction, including the demolition of the façade, roof and central apse (including a Papal tomb).He also created new chapels and replaced much of the internal art, wood and stone decorations as well as the stained glass windows.