Heian-kyo (Kyoto) (858) — the same event in Nihon Montoku Tennō Jitsuroku and Nihon Sandai Jitsuroku

Nihon Montoku Tennō Jitsuroku: In the eighth month, on day 乙卯, Emperor Montoku dies at the Shinsei-den; earlier, on the night of day 辛亥, he suddenly…

What each source says

Nihon Montoku Tennō Jitsuroku · AD 858 · Heian-kyo (Kyoto)

In the eighth month, on day 乙卯, Emperor Montoku dies at the Shinsei-den; earlier, on the night of day 辛亥, he suddenly fell ill, and on day 壬子 the illness became severe and he could no longer speak.

帝崩於新成殿
Location: 日本文德天皇實錄 卷第十 「天安二年」 8月

Nihon Sandai Jitsuroku · AD 858 · 平安京

Emperor Montoku dies on the twenty-seventh day of the eighth month at the Shinsei-den of the Reizen-in. The palace guard generals guard the crown prince's quarters and hand the divine seal, the precious sword and other regalia to the crown prince.

文徳天皇崩於冷然院新成殿。
Location: 卷第一 天安2年8月 (원문 1.4)

Place: 京都(三条高倉御所)

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