|Area/Ruler:||Spain - Castile & Leon: Alphonso X|
|Reigned:||1252 - 1284 AD|
|Obverse:||Two castles and two lions in opposing quadrants|
|Reverse:||"ALPHONSVS REX CASTELLE ET LEGIONIS" on six lines.|
Alphonso X of Castile and Leon, called El Sabio, or "the learned" (born 1221, died 1284, reigned 1252-1284), was a writer, of considerable scientific fame, based on his study of astronomy and the Ptolemaic cosmogony as known to him through the Arabs.
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