Piedmont ( ; , ) is a region of Northwest Italy, one of the 20 regions of the country. It borders the Liguria region to the south, the Lombardy and Emilia-Romagna regions to the east and the Aosta Valley region to the northwest; it also borders Switzerland to the northeast and France to the west. It has an area of making it the second largest region of Italy after Sicily and a population of 4,269,714 as of 31 January 2021. The capital of Piedmont is Turin. Toponymy The French Piedmont, the Italian Piemonte, and other variant cognates come from the medieval Latin or , i.e., , meaning "at the foot of the mountains" (referring to the Alps), attested in documents from the end of the 12th century. Geography Piedmont is surrounded on three sides by the Alps, including Monviso, where the river Po rises, and Monte Rosa. It borders with France (Auvergne-Rhône-Alpes and Provence-Alpes-Côte d'Azur), Switzerland (Ticino and Valais) and the Italian regions of Lombardy, Liguria, Aosta Valley and for a very small part with Emilia Romagna. The geography of Piedmont is 43.3% mountainous, along with extensive areas of hills (30.3%) and plains (26.4%). Piedmont is the second largest of Italy's 20 regions, after Sicily. It is broadly coincident with the upper part of the drainage basin of the river Po, which rises from the slopes of Monviso in the west of the region and is Italy's largest river. The Po drains the semicircle formed by the Alps and Apennines, which surround the region on three sides. The countryside is very diverse: from the rugged peaks of the massifs of Monte Rosa and Gran Paradiso to the damp rice paddies of Vercelli and Novara, from the gentle hillsides of the Langhe, Roero and Montferrat to the plains. 7.6% of the entire territory is considered protected area. There are 56 different national or regional parks; one of the most famous is the Gran Paradiso National Park, between Piedmont and the Aosta Valley. Piedmont has a typically temperate climate, which on the Alps becomes progressively temperate-cold and colder as it climbs to altitude. In areas located at low altitudes, winters are relatively cold but not very rainy and often sunny, with the possibility of snowfall, sometimes abundant. Snowfall, on the other hand, is less frequent and occasional in the northeast areas. Summers are hot with local possibilities of strong thunderstorms. Major towns