Oyasumi-dono

An important palace located in the Imperial Palace (Daidai-ri) during the Asuka and Nara periods. It can also be read as "Oandono". However, the specific appearance of the palace is not well known, and it first appeared in records in 685 (Tenmu 14) at Asuka Kiyomihara Palace, and was seen at Emperor Mommu's Fujiwara Palace, Emperor Shomu's Naniwa Palace, Kuni Palace, Shigaraki Palace, and Heijo Palace, and the last record was in 754 (Tenpyo Shoho 6) during the reign of Emperor Kōken, after which no further records appear. The emperor would come to the palace to hold New Year's ceremonies such as the New Year's uta banquet, the sai-e, and the morning greetings. Norinaga Motoori and others proposed that it was a Japanese-style name for the Daigokuden, but subsequent examination of historical materials revealed that it was a different building from the Daigokuden. Considering the importance of the events held there, there was also a theory that it was the main hall of the Imperial Palace (corresponding to the Shishinden of the Heian Palace), but it is now thought to be a building located in one section of the Daigokuden-in Temple that could have been a place for public ceremonies comparable to the Daigokuden.

[Sanae Yoshida]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

飛鳥(あすか)・奈良時代の宮城（大内裏(だいだいり)）にあった重要な殿舎。「おおあんどの」とも読む。しかし具体的な殿舎の姿はあまりよくわからず、685年（天武14）飛鳥浄御原宮(きよみはらのみや)で初めて記録に現れ、文武(もんむ)天皇の藤原宮、聖武(しょうむ)天皇の難波宮(なにわのみや)、恭仁宮(くにのみや)、紫香楽宮(しがらきのみや)、および平城宮にみえ、孝謙(こうけん)天皇の754年（天平勝宝6）を最後に、それ以後は記事がみえなくなる。天皇が出御(しゅつぎょ)して正月の踏歌の宴、斎会(さいえ)、朝賀などの儀式が行われた。本居宣長(もとおりのりなが)らは、大極殿の和風の名称であろうとの説をたてたが、その後史料の検討の結果、大極殿とは別の殿舎であることが判明した。行われた行事の重要さからみて、内裏の正殿（平安宮の紫宸殿(ししんでん)にあたる）とする説もあったが、現在では、大極殿院の一郭にあり、大極殿に匹敵する公的な儀式の場となりうる殿舎ではないかと考えられている。

［吉田早苗］

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