Alfontso IX.a Leongoa (Zamora, 1171ko abuztuaren 15a -Sarria, 1230ko irailaren 24a) Galizia eta Leongo erregea (1188 – 1230) izan zen[1].
- ↑ Szabolcs de Vajay, "From Alfonso VIII to Alfonso X" . "Studies in Genealogy and Family History in Tribute to Charles Evans on the Occasion of his Eightieth Birthday" liburuan, 1989, 366-417. orr.