Columbia subject headings:
Alfonso X, King of Castile and Leon, 1221-1284. Cantigas de Santa María.
Harvard subject headings:
Alfonso X, King of Castile and Leon, 1221-1284. Cantigas de Santa María
Princeton subject headings:
Alfonso X, King of Castile and Leon, 1221-1284. Cantigas de Santa María.
Galician language--Versification.