Alfonso X, El Sabio, or the learned, (1221-1284, reigned 1252-1284), king of Castile and León, is perhaps the most interesting, though far from the most capable, of the Spanish kings of the Middle Ages.
He was a writer, and he had considerable scientific fame, based mainly on his encouragement of astronomy and the Ptolemaic cosmogony as known to him through the Arabs.
As a ruler he showed legislative capacity, and a very commendable wish to provide his kingdoms with a code of laws and a consistent judicial system. The Fuero Real was undoubtedly his work, and he began the code called the Siete Partidas, which, however, was only promulgated by his great-grandson. He lacked the singleness of purpose required...
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