Luoyang (933) — the same event in Old History of the Five Dynasties and Zizhi Tongjian

Old History of the Five Dynasties: On the first day of the twelfth month, day Guimao, mourning was begun at the West Palace, and the emperor ascended…

What each source says

Old History of the Five Dynasties (Jiu Wudai shi), Annals · AD 933 · 洛陽

On the first day of the twelfth month, day Guimao, mourning was begun at the West Palace, and the emperor ascended the throne before the bier.

十二月癸卯朔，發喪於西宮，帝於柩前即位。
Location: 舊五代史卷45

Zizhi Tongjian (Comprehensive Mirror) · AD 933 · 洛陽

The Prince of Song (Emperor Min) ascends the throne.

始發明宗喪，宋王即皇帝位
Location: 資治通鑑卷278 제79단(머리글 이후 비공백 줄 기준)

Place: 洛陽

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