Jiaozhou (544) — the same event in Book of Liang and History of the Southern Dynasties

Book of Liang: Li Bi usurped the imperial title in Jiaozhi, and set up a court with all its officials.; History of the Southern Dynasties: Lý Bí, at…

What each source says

Li Bi usurped the imperial title in Jiaozhi, and set up a court with all its officials.

李賁於交址竊位號，署置百官
Location: 卷3 大同十年正月

Lý Bí, at Jiaozhi, adopted a royal title and used the era name Tiande.

李賁竊號於交址，年號天德
Location: 南史卷7 大同10年