Is Zuo Zhongtang an official name or a person's name?

Coincidentally, "the name comes with the official position". Zongtang is the name, Zhongtang is the official position (the Qing Dynasty on the Cabinet of the first rank of the university scholar's alias, elegant name or honorific title). Ancient people are very careful, call his name is disrespectful, because the Hall and Zongtang resonance, and left there is a second-class marquis of the title, so the left of the colleagues called the left "left phase", "left marquis phase", "Jennifer Shuai" and so on.