Located at No.10 Ngo Gach, Dong Xuan Ward in Hoan Kiem District of Hanoi, Thanh Ha Communal House was seen as the oldest extant stele in Hanoi. Built in 1430, this historical relic was originally named Thanh Ha Ngoc Phả Bi Kí.

Built to give great honor to the tutelary god named Tran Luu, this communal house was constructed as a symbol of the general in the Tran Dynasty (13 century). He was known under the honor name: “Great Lord” which was granted for his legend. According to the ancient stele, his legend is as follow: