Li Siyuan

Emperor Mingzong of Tang 唐明宗
Emperor of the Later Tang dynasty
Reign	3 June 926[1] – 15 December 933
Predecessor	Li Cunxu
Successor	Li Conghou
Born	10 October 867 Yingzhou, Tang dynasty[2] (today's Ying County, Shanxi)
Died	15 December 933(933-12-15) (aged 66) Luoyang, Later Tang dynasty (today's Luoyang, Henan)
Burial	11 June 934[3] Hui Mausoleum (徽陵; in today's Mengjin County, Luoyang, Henan) 34°47′5.28″N 112°33′54.72″E / 34.7848000°N 112.5652000°E / 34.7848000; 112.5652000
Spouse	See § Family
Issue	Li Congrong Empress Li of Later Jin Li Conghou others
Names Shatuo name: Miaojilie (邈佶烈) Chinese surname: Lǐ (李) Chinese given name: Sìyuán (嗣源), changed to Dǎn (亶) on 5 February 927[4] Era dates Tiānchéng (天成): 3 June 926 – 2 March 930 Chángxīng (長興): 3 March 930 –17 January 934 Regnal name Emperor Shèngmíng Shénwǔ Wéndé Gōngxiào (聖明神武文德恭孝皇帝), after 30 December 929[5] Emperor Shèngmíng Shénwǔ Guǎngdào Fǎtiān Wéndé Gōngxiào (聖明神武廣道法天文德恭孝皇帝), after 27 August 933[6] Posthumous name Short: Emperor Héwǔ (和武皇帝) Full: Emperor Shèngdé Héwǔ Qīnxiào (聖德和武欽孝皇帝)[2] Temple name Míngzōng (明宗, "Bright Ancestor")
House	Li
Dynasty	Later Tang
Father	Li Ni (李霓) (biological) Li Keyong (adoptive)
Mother	Lady Liu (劉氏) (biological)

Li Siyuan (李嗣源, later changed to Li Dan (李亶)^{[4][note 1]}) (10 October 867^[2] – 15 December 933^[7]), also known by his temple name as the Emperor Mingzong of Tang (唐明宗), was the second emperor of the Later Tang dynasty of China, reigning from 926 until his death. He was an ethnic Shatuo originally named, in the Shatuo language, Miaojilie (邈佶烈).

Adopted by the ethnic Shatuo ruler Li Keyong of the Former Jin dynasty, Li Siyuan became a trusted general under both Li Keyong and Li Keyong's successor Li Cunxu (Emperor Zhuangzong), the Later Tang founder. In 926 he seized power by a coup d'état when a mutiny called the Xingjiao Gate Incident killed Li Cunxu, and ruled with both discipline and compassion for the next seven years. Despite an abundance of natural disasters, his reign was markedly more peaceful than the half-century preceding it.

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