宋會要輯稿 Sòng huìyào jígǎo

Qing-period reconstruction of the lost Sòng-dynasty huìyào compilations of administrative documents and government records. Compiled by Xú Sōng 徐松 (1781–1848) from quotations preserved in the Yǒnglè dàdiǎn 永樂大典 and other sources. A principal documentary source for Sòng institutional and religious history, including monastic registers, translation bureau activity, and court ceremonial records.