KnowraCastilian SpanishLinked fromLinked fromThe 7 pages that link to Castilian Spanish, each with the reason it gives.All 7Related 3Compared with 4Nueva Planta decreesRelated: The decrees promoted Castilian in administration and public institutions.Antonio de NebrijaRelated: It was the language Nebrija described and helped establish as a subject of formal study.Peninsular SpanishRelated: The ambiguity of “Castilian” matters when naming Spain's regional varieties.