Palatine Chapel (Cappella Palatina) (12th cent) - Palace of the Normans or Royal Palace (Palazzo dei Normanni - Palais des Normands) Palermo - Sicily (2018)Commissioned by king Roger II (Ruggero II) in 1130; it was consacred in 1140 and dedicated to Saint Peter and Saint Paul. The mosaics of the dome were completed in 1143; those of the central nave and aisles were completed during the reign of King William (Guglielmo) (1154-1166)