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The Court of Imperial Sacrifices, also known as the Court of Sacrificial Worship, was a central government agency in several imperial Chinese and Vietnamese dynasties. It was generally in charge of conducting major state sacrificial ceremonies according to ritual regulations. In China, the office was created during the Northern Qi dynasty (550–577) and continued until the Qing dynasty (1644–1912). In Vietnam, it was created by Lê Thánh Tông in 1466, and continued until the Nguyễn dynasty.
It was one of the Nine Courts and normally under the supervision of the Ministry of Rites. Prior to the Qing dynasty it was the most prestigious of the Nine Courts.
The Office of the National Altars was a government agency under the Court of Imperial Sacrifices during the Sui, Tang, Song, Jurchen Jin, and Yuan dynasties. Between Sui and Tang it was known as Jiaoshe Shu, and between Song and Yuan it was known as Jiaoshe Ju. Its main function was to prepare for and participate in regular rituals at major sacrificial altars and temples in the dynastic capital.