Only Catalonia. Though Catalan secesionists claim the other regions of Catalan language (Roselló and the French-occupied part of Cerdanya, Valencia, the Balearic Islands, Andorra, the so-called Western Strip [a Catalan speaking area in the region of Aragon], and L'Alguer [aka Alghero, a Catalan speaking town in Sardinia]), these regions oppose to Catalan secesionist-annexionist claims. Except for Roselló (aka Roussillon) and the part of the Cerdanya, occupied by the French where it is the French State which opposes.

I'm not following the news these days, but at the last moment it seems that the Socialists have dropped the agreement with the left secesionists of ERC and come to an agreement with the Christian-Democrat/Populist coalition of CiU instead.

The one time when a part of Catalonia rose for secession, they looked support on the French, then realized of their mistake, had to beg for readmittance in Spain, but had already lost a part of core Catalonia which was seized by the French State (Roselló and a part of Cerdanya). Idiots never learn..