Quan Su Temple was built in the 15th century under the Lê Dynasty. At that time there was no Buddhist temple here but some cottages used as a place of worship. According to Hoàng Lê nhất thống chí, during Emperor Le The Tong’s reign, Chiem Thanh (Champa), Ai Lao (Laos) usually sent ambassadors to offer tributes to Đại Việt (official name of Viet Nam under the Lê Dynasty). The Emperor ordered to construct a building called Quan Su (Embassy) to receive foreign ambassadors to Thăng Long. Because those ambassadors were all Buddhist, they decided to build a temple on the premises for worship. Today only the temple remains.
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