Urbino Cathedral
The Cathedral of Urbino was first built in 1021. In the 15th century, on the initiative of Federico da Montefeltro, the cathedral was rebuilt according to a design attributed to the Sienese Francesco di Giorgio Martini, the Duke's official architect, and completed in 1604. The project, simple and bare, consisted simply of three naves supported by white colonnades. The earthquake of 12 January 1789 caused the collapse of the dome and necessitated the reconstruction of the cathedral according to a project by the Roman architect Giuseppe Valadier (1762-1839), who completed the building in 1801.