Castilianist mural in Villalar de los ComunerosThe purple flag displaying a red star and a yellow castle is used by contemporary organizations advocating for a sovereign Castile as a Socialist republic consisting of seventeen provinces.[1]
Castilian nationalism or "Castilianism" (Spanish: castellanismo) is a fringe political movement[2] that advocates for the national recognition of Castile, and in some cases, its independence from Spain.