Roncone (Roncon in local dialect) was a comune (municipality) in Trentino in the northern Italian region Trentino-Alto Adige/Südtirol , located about 35 kilometres (22 mi) west of Trento . It was merged with Bondo, Lardaro and Breguzzo on January 1, 2016, to form a new municipality, Sella Giudicarie.