Catelonia and Galicia both have a strong sense of self identity and their own language.
FromWiki:The modern independence movement began in 2010 when the Constitutional Court of Spain ruled that some of the articles of the 2006 Statute of Autonomy—which had been agreed with the Spanish government and passed by a referendum in Catalonia—were unconstitutional, and others were to be interpreted restrictively. Popular protest against the decision quickly turned into demands for independence. Starting with the town of Arenys de Munt, over 550 municipalities in Catalonia held symbolic referendums on independence between 2009 and 2011. All of the towns returned a high "yes" vote