Leshou (617) — the same event in History of the Northern Dynasties and Book of Sui

History of the Northern Dynasties: Dou Jiande built an altar at Leshou in Hejian and proclaimed himself King of Changle.; Book of Sui: Dou Jiande, a…

What each source says

History of the Northern Dynasties (Beishi), Annals · AD 617 · 樂壽

Dou Jiande built an altar at Leshou in Hejian and proclaimed himself King of Changle.

勃海賊竇建德設壇於河間之樂壽，自稱長樂王
Location: 北史 卷12 大業13年

Book of Sui (Suishu), Imperial Annals · AD 617 · 樂壽

Dou Jiande, a bandit from Bohai, built an altar at Leshou in Hejian and proclaimed himself King of Changle.

勃海賊竇建德設壇於河間之樂壽，自稱長樂王，建元丁丑
Location: 隋書 卷004 帝紀 大業13年1月

Show on the map — open History of the Northern Dynasties (Beishi), Annals