PersonAD 598 – AD 649

Emperor Taizong of Tang

Second Tang emperor whose 645 invasion of Goguryeo stalled at Ansi Fortress

Where they went

1
AD 618Founding of the Tangparticipant
Amid the collapse of Sui, Li Yuan (Emperor Gaozu) rose at Taiyuan, took Chang’an and founded the Tang in 618. In 626 his son Li Shimin (Taizong) took over after the Xuanwu Gate Incident.
2
AD 627 – AD 649The Zhenguan Era and the Tang Legal-Administrative Systemmonarch
Emperor Taizong of Tang set up the Three Departments and Six Ministries, the codes of law, statute, regulation and ordinance, and the equal-field, zu-yong-diao and militia systems, and governed with an open ear to remonstrance — a period of stability known as the Reign of Zhenguan.
3
AD 645Siege of Ansi Fortresscommander
Emperor Taizong of Tang took the Liaodong fortresses, but Ansi held out for 88 days and forced him to withdraw.
4
AD 648Silla–Tang Alliancemonarch
Kim Chun-chu travelled to Tang and concluded a military alliance with Emperor Taizong: once Baekje and Goguryeo fell, Silla would have the land south of Pyongyang.

Dramatized works (films, dramas, novels) may differ from the historical record.

Emperor Gaozu of TangAD 566 – AD 635
Founder of the Tang (r. 618–626), who rose at Taiyuan amid the collapse of Sui, took Chang’an and proclaimed the dynasty; he gave up the throne to his son Li Shimin (Taizong) in 626
Yeon GaesomunAD 665
Grand Mangniji of late Goguryeo who seized power in a coup and stood firm against Tang
King BojangAD 682
Last king of Goguryeo, enthroned by Yeon Gaesomun, who surrendered in 668
King Muyeol (Kim Chun-chu)AD 603 – AD 661
Twenty-ninth king of Silla, who forged the Tang alliance, became the first jingol king and conquered Baekje
Queen JindeokAD 654
Twenty-eighth ruler and last "hallowed-bone" monarch of Silla, enthroned during Bidam’s revolt, under whom the Silla–Tang alliance was made and the Jipsabu set up

Wars of Korean UnificationAD 598 – AD 676
From Goguryeo's wars with Sui and Tang to Silla's unification — eighty years of East Asian war on the peninsula
Sui, Tang and the East Asian WorldAD 317 – AD 979
From the divided Southern and Northern Dynasties and the Gupta age through the Sui and Tang empires to the founding of the Song — the age when an East Asian world sharing law codes, Buddhism, Confucianism and Chinese characters took shape, and Korea and Japan built their states on its model