When Songtsen Gampo's marriage overture arrived, Taizong, the second Tang emperor, was battling the Tuyuhun and did not initially respond, but did sent the emissary Feng Dexia (馮德遐) to Tibet to establish peaceful relations.
Da Songtsen Gampos ægteskabshenvendelse ankom, kæmpede Taizong, den anden Tang-kejser, mod Tuyuhun og reagerede ikke i første omgang, men sendte sendebuddet Feng Dexia (馮德 遐) til Tibet for at etablere fredelige forbindelser.