Jiankang (559) — the same event in Book of Chen and History of the Southern Dynasties

Book of Chen: Chen Baxian died at the Xuanji Hall at age 57; by his edict he summoned Chen Qian, Prince of Linchuan, to ascend the throne (posthumous…

What each source says

Book of Chen (Chenshu), Annals · AD 559 · 建康

Chen Baxian died at the Xuanji Hall at age 57; by his edict he summoned Chen Qian, Prince of Linchuan, to ascend the throne (posthumous title Emperor Wu, Gaozu).

景午，崩于璿璣殿，時年五十七
Location: 陳書卷2 永定3年六月

History of the Southern Dynasties (Nanshi), Annals · AD 559 · 璿璣殿

Emperor Wu died in the Xuanji Hall at the age of 57.

丙午，帝崩於璿璣殿，時年五十七
Location: 南史卷9 永定3年

Place: 石頭城(建康)

Show on the map — open Book of Chen (Chenshu), Annals