爾朱世隆
Emperor Xiaozhuang made Erzhu Shilong " (僕射) -- a high level imperial official—and made him in charge of the civil service system. Erzhu Shilong, initially fearing that he was not capable for the position, spent much time and energy studying the laws and regulations, and reformed the system so that it was no longer strictly seniority-based. He received much praise for the reforms. Emperor Xiaozhuang also created him the Duke of Leping.