Architecture of Rome huge and majestic Baroque squares (often adorned with obelisks), many of which were built in the 17th century. The principal squares are Piazza Navona, Piazza di Spagna, Campo de' Fiori, Piazza Venezia, Piazza Farnese and Piazza della Minerva. One of the most emblematic examples of Baroque art is the Fontana di Trevi by Nicola Salvi. Notable 17th-century baroque palaces are the Palazzo Madama, now the seat of the Italian Senate and the Palazzo Montecitorio, now the seat of the Chamber of Deputies of Italy. In 1870, Rome became the capital city of the new Kingdom of Italy. During this time,
Piazza Armerina slightly later age of Frederick II) with colonists coming from northern Italy (then collectively called "Lombardy"), especially from Monferrato and Piacenza. The most common surnames in Piazza Armerina and their frequencies as of 2014: <BR> Piazza Armerina Piazza Armerina (Gallo-Italic of Sicily: "Ciazza"; Sicilian: "Chiazza") is a "comune" in the province of Enna of the autonomous island region of Sicily, southern Italy. The city of Piazza (as it was called before 1862) developed during the Norman domination in Sicily (11th century), when Lombards settled the central and eastern part of Sicily. But the area had been inhabited since prehistoric times.