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Castilian nationalism or"Castilianism" (Spanish:castellanismo) is a fringepolitical movement[2] that advocates for the national recognition ofCastile, and in some cases, itsindependence fromSpain.
The 19th century saw the development of what historianCelso Almuiña [es] terms as a Castilian "regio-nationalism", fostered by a sense of grievance againstCatalonia among the Conservative milieus (supportive of theprotectionist interests of the flour-making Bourgeoisie) who pitted themselves against central power in the wake of the 1843 free trading policies brought forward byEspartero.[3]
During theSecond Republic, Castilian nationalist postulates were fringe, adopting a merely "mimetic and defensive" role that tended to fade towards otherwise stronglyanti-Catalanist regionalist stances, just as it had been previously the case with the messages of Burgos (1918) and Segovia (1919).[4]
A newsovereignist andinternationalist leftist iteration of Castilianism, characterised by the most radical rejection of the identification of 'Castile' with 'Spain' (referred to asSpanish State among its followers), emerged after the creation ofCastilian Popular Unity (UPC) in 1983, and, most notably,Castilian Left (IzCa) in 2000.[5]