European Spring (PE). European Spring is an alliance of multiple left-leaning regionalist parties with the small green party Equo.
Along with Equo, a very minor eco-socialist party, the major components of the list are the Compromise Coalition a centre-left coalition of Valencian nationalist parties headed by the Valencian Nationalist Bloc (BNV), and the Aragonese Union, an eco-socialist Aragonese nationalist (though not separatist) party.
The BNV and the CHA ran as part of the Europe of the Peoples coalition in 2009. Neither won any seats. Both are members of the European Free Alliance, whereas Equo is a European Green Party member.