Answer
Zhuge Liang, the renowned strategist and statesman, served as the regent of the Shu Han kingdom during the Northern Expeditions. His role involved overseeing the administration and military affairs of the kingdom while the young emperor, Liu Shan, was still maturing. Zhuge Liang's strategic brilliance and unwavering loyalty made him a pivotal figure in Shu's efforts to expand its territory and unify China.