Большой китайско-русский словарь
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Li Chen, personal name of seventeenth Tang emperor Xuanzong 宣宗[Xuān zōng] (810-859), reigned 846-859
李忱 в энциклопедиях
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Li Chen, personal name of seventeenth Tang emperor Xuanzong 宣宗[Xuān zōng] (810-859), reigned 846-859