Columbia subject headings:
Harvard subject headings:
Castile (Kingdom)--Foreign relations--Treaties.
Castile (Spain)--Foreign relations--Treaties.
Castilla y León (Spain)--History.
Comparative linguistics--Spain--Castilla y León.
Language policy--Spain--Castilla y León--History.
Latin language, Medieval and modern--Orthography and spelling.
Latin language, Medieval and modern--Spain--History.
Leon (Kingdom)--Foreign relations--Treaties.
Romance-language literature--History and criticism.
Spanish language--Orthography and spelling.
Spanish language--To 1500--History.
Princeton subject headings:
Castile (Kingdom)--Foreign relations--Treaties.
Castilla y León (Spain)--History.
Comparative linguistics--Spain--Castilla y León.
Language policy--Spain--Castilla y León--History.
Latin language, Medieval and modern--Orthography and spelling.
Latin language, Medieval and modern--Spain--History.
Leon (Kingdom)--Foreign relations--Treaties.
Romance-language literature--History and criticism.
Spanish language--Orthography and spelling.
Spanish language--To 1500--History.
Treaties.