TY  - BOOK
AU  - Barton,Simon
TI  - The aristocracy in twelfth-century León and Castile
T2  - Cambridge studies in medieval life and thought
PY  - 1997///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Aristocracia
KW  - Castilla (Reino)
KW  - 11
ER  -