Taizong is typically considered to be one of the greatest emperors in China's history and henceforth, Emperor Taizong's reign was regarded as the exemplary model against which all other emperors were measured.
Taizong is typically considered to be one of the greatest emperors in China's history and henceforth. This was what Emperor Taizong's reign was regarded as the exemplary model against which all other emperors were measured.