高熲
Under Emperor Wen, the executive bureau was regarded as the most important, and he had his most honored officials such as Gao Jiong, Yang Su, and Su Wei lead it at various points. Its heads were generally regarded as chancellors (as it always had two heads, known as the "Shàngshūpúshè" (尚書僕射)). Ouyang asserts, however, that the heads of the examination and legislative bureaus were also considered chancellors.