Introduction to the Government Affairs Office of Duke Di Liang: In the fourth year of Chui Gong in the Tang Dynasty (688), Duke Di Liang came to Fuzhou (today's Miancheng) to serve as governor. During this period, he focused on agriculture, controlled floods, revitalized commerce, cleaned up lawsuits, eliminated violence and brought peace, leaving behind "an official He only remembers three things: "qing (honest), "shen" (prudent), and "diligence" (diligence)." The warning is deeply loved by the people. Later, the people of Miancheng commemorated the political achievements of Duke Di Liang and built an octagonal pavilion on the south side of the west head of Baguajian between the large and small lotus ponds. On the plaque was written "The Political Affairs Office of Duke Di Liang, the Governor of the Tang Dynasty". In the third year of Qianlong's reign, it was built as a building and covered with tube tiles. It was renamed "Ying'en Building" to express gratitude to Duke Di Liang.