Emperor Duzong of Song

Emperor Duzong of Song , personal name Zhao Qi, was the 15th emperor of the Song dynasty in China and the sixth emperor of the Southern Song dynasty. He was a nephew of his predecessor, Emperor Lizong, and reigned from 1264 until his death in 1274. His birth name was Zhao Mengqi but his name was changed to Zhao Zi in 1251 and finally to Zhao Qi in 1253 after he was designated as Emperor Lizongs heir apparent.

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Source: Wikipedia