Luo Yi

Luo Yi, known during service to the Tang dynasty as Li Yi (李藝), courtesy name Ziyan (子延) or Ziting (子廷), was a Sui dynasty official who rose against the rule of Emperor Yang of Sui and occupied the modern Beijing region. He subsequently submitted to Emperor Gaozu of Tang and was created the Prince of Yan and granted the imperial surname of Li. He subsequently, in the struggle between Emperor Gaozu's sons Li Jiancheng the Crown Prince and Li Shimin the Prince of Qin, joined Li…