also: せいろうでん
noun
Seiryōden (emperor's residence in Heian Palace)
Historical term for the main residential pavilion of the emperor within the Heian Palace complex. Also known as one of the 十七殿 (Seventeen Halls).
See also: 十七殿
清涼殿は平安宮内裏の中心的な建物だった。
The Seiryōden was the central building of the inner palace of the Heian Palace.
Seventeen Halls of the Heian Palace; 清涼殿 is one of them.
From 清涼 (seiryō, 'cool and refreshing') + 殿 (den, 'palace building'). The name reflects the pavilion's design for comfort during summer.