Little Goguryeo 고려 高麗
699–820
Dark yellow - Little Goguryeo, Light yellow - Balhae
Status	Vassal state of Tang dynasty De facto independent kingdom
Capital	Unknown
Common languages	Goguryeo (Koreanic) Middle Chinese
Religion	Buddhism, Confucianism, Taoism, Chinese folk religion, Korean shamanism
Government	Monarchy
History
• Establishment	699
• Fall	820
Preceded by Succeeded by Goguryeo Protectorate General to Pacify the East Balhae
Today part of	China North Korea

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Prehistoric period Palaeolithic 700,000 BC-8000 BC Neolithic 8000 BC–1500 BC * Jeulmun Bronze Age 1500 BC–300 BC * Mumun * Liaoning dagger
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Later Three Kingdoms period Later Baekje 892–936 Taebong (Later Goguryeo) 901–918 Unified Silla (Later Silla) 892–935 Later Sabeol 919–927 Dongdan Kingdom 926–936 Later Balhae 927–935 Jeongan 938–986
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Little Goguryeo (Korean: 소고구려; Chinese: 小高句麗; alternatively Lesser Goguryeo) is the name of a state thought to have existed on the Liaodong Peninsula, proposed by the Japanese scholar Kaizaburo Hino (ja:日野開三郎). The existence of the state is debated among scholars.^[1] The state was mentioned in historical records, with its leaders recorded as Governors-General subject to the Tang dynasty in the documents of the Tang government.^[2][3] It was supposedly established by the refugees of Goguryeo after its defeat by the Tang dynasty.^[4]

Following Goguryeo's defeat by the Tang–Silla alliance, the Liaodong Peninsula was administered by the Tang dynasty. The theory is that the Tang dynasty eventually lost effective control of the region due to rebellions staged by Goguryeo refugees, and Liaodong became a buffer zone between the Tang dynasty and Balhae (Bohai). Although Lesser Goguryeo declared itself an independent kingdom, it was soon absorbed into Balhae.

In 699, the Tang government sent former Goguryeo prince Go Deokmu, the third son of Goguryeo's last ruler, King Bojang, to Liaodong Peninsula, naming him "King of Chaoxian" and Governor of the Yodong Commandery of the Protectorate General to Pacify the East. Like his father, Go Deokmu had plans to rebel against the Tang, to revive Goguryeo and to provide a kingdom for the Goguryeo people.

The Tang Empire at the time was undergoing several crises, especially the An Lushan Rebellion. Along with these major events was also the pressure given by the Empire of Balhae. These and many other pressures allowed Go Deokmu to take full control of the Protectorate General to Pacify the East and allegedly to establish a kingdom.^{[citation needed]}

The Lesser Goguryeo kingdom was established during that year with Go Deokmu as its first king. Very little is known about how the neighboring kingdoms reacted to the establishment of Lesser Goguryeo. It is known that Balhae was on good terms with Lesser Goguryeo with respect to the similar purposes that the two kingdoms possessed.^{[citation needed]}

At around 820, after two generations of ruling the Liaodong Peninsula and other former regions of Goguryeo, Lesser Goguryeo was absorbed into Balhae during the reign King Seon of Balhae.

• Goguryeo
• Balhae
• Protectorate General to Pacify the East
• Go Deokmu