C498 Barrier Technique

On the first day of the fifth month of the fifth year of the Heavenly Treasure era, An Lushan proclaimed himself as the majestic emperor of the Great Yan Dynasty. He changed the name of the dynasty to the Sacred Martial Emperor's first year. He named Luoyang as the capital and used Fan Yang as the eastern capital.

The incompetent Xuan Emperor and the treacherous minister, Yang Guozhong