Region: China · Coordinates: 40.852, 122.747 · 4 events
| Year | Source | Account |
|---|---|---|
| AD 645 | Samguk Sagi (History of the Three Kingdoms) | Emperor Taizong of Tang reached Ansi fortress and began the attack. |
| AD 645 | Samguk Sagi (History of the Three Kingdoms) | The northern yoksal Go Yeonsu and the southern yoksal Go Hyejin came to relieve Ansi with 150,000 Goguryeo and Malgal troops, but were badly defeated and surrendered. |
| AD 645 | Samguk Sagi (History of the Three Kingdoms) | Emperor Taizong of Tang could not finally take Ansi fortress; as the cold came and provisions ran out, he ordered the withdrawal and gave silk to the castle lord. |
| AD 671 | Samguk Sagi (History of the Three Kingdoms) | Gao Kan of Tang defeated the Goguryeo refugees at Ansi fortress. |