The party emerged in November 2011 by the merger of Lega Padana Lombardia, led by Roberto Bernardelli and Giulio Arrighini, and other groups of Padanists led by Francesco Formenti and Giovanni Ongaro. All four politicians had been deputies of Lega Lombarda–Lega Nord in the 1990s.
As soon as in March 2012 the provincial wing of Bergamo, led by Ongaro, split and formed the Alpine Padanian Union (UPA). In May 2013 the Lombard branch of the party created a new organization: Lombard Independence (Indipendenza Lombarda).
In April 2014 Bernardelli was arrested, along with a group of Venetian separatists (including Franco Rocchetta, leading members of the Venetian Most Serene Government and the European Federalist Free Entrepreneurs), for suspected crimes including criminal association for terrorism and subversion of the democratic order. Bernardelli was released on 18 April, along with Rocchetta and most of the others, as the tribunal of Brescia did not uphold the accusations.