In terms of peerage, ordinary marquises generally hold the third rank—specifically, junior third rank—with exceptions made only for those with extraordinary military achievements.
Chu Qingfeng, the father of Chu Xiaohe and Chu Yueli, was originally conferred the title of Marquis of Loyalty and Bravery. Because of his illustrious military exploits, he was exceptionally granted a second-rank peerage, though it was still the junior second rank.
Yet today, Chu Xiaohe's title of Marquis of Dingbei was bestowed at the full second rank, which was vastly different from hereditary peerages and honors granted through accumulated service.
Chapter 468