After roughly two decades as a protectorate of the Crown of Castile, the territory of the Taifa of Murcia became the Kingdom of Murcia (Spanish: Reino de Murcia, a territorial jurisdiction of the Crown of Castile) in the wake of its conquest by Aragon and ensuing return to Castile triggered by the 1264–1266 Múdejar revolt.

It preserved such status up until Javier de Burgos' provincial division of Spain in 1833.

[1] This was a "kingdom" ("reino") in the second sense given by the Diccionario de la lengua española de la Real Academia Española: the Crown of Castile consisted of several such kingdoms.

Its extent is detailed in Respuestas Generales del Catastro de Ensenada (1750–54), which was part of the documentation of a census.

[3][4] The title "King of Murcia" was used by the monarchs of the Crown of Castile and today constitutes one of the historical titles of the Spanish Crown.