Complex sentence: Jia Xu (賈詡) (147-224 AD), styled Wenhe (文和), was an important strategist and advisor in the Three Kingdoms era of China, who has followed Dong Zhuo, Li Jue and Zhang Xiu before finally joining Cao Cao.
Split into simpler sentences: Jia Xu (賈詡) (147-224 AD), styled Wenhe (文和), was an important strategist and advisor during the Three Kingdoms era of China. He followed Dong Zhuo, Li Jue and Zhang Xiu before finally joining Cao Cao.