Piedmont ( ; , ; Piedmontese, Occitan and ; ) is a region in northwest Italy, one of the 20 regions of the country. It borders France, Aosta Valley region, Switzerland, Lombardy, Emilia Romagna and Liguria regions. It has an area of 25,402 square kilometres (9,808 sq mi) and a population of 4 396 293 (31-7-2016). The capital of Piedmont is Turin. 

The name Piedmont comes from medieval Latin Pedemontium or Pedemontis, i.e., "ad pedem montium", meaning “at the foot of the mountains” (the Alps) attested in documents of the end of the 12th century. 

Other towns of Piedmont with more than 20,000 inhabitants sorted by population : 

Piedmont is surrounded on three sides by the Alps, including Monviso, where the 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 fragment 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 collects all the waters provided within the semicircle of mountains (Alps and Apennines) which surround the region on three sides.
Which is first?
Piedmont is the second largest of Italy's 20 regions, after Sicily