C293 hereditary title
Prince Zhuang was quite open about it. In any case, he was a heirloom. Descendants had their own blessings. If the future Prince Zhuang was able to be inherited by his own descendants, it could also be considered as their blessings.
However, even if he was the grandson of Prince Li Li, he had earned military merits on the battlefield and the inheritance of a duke for his family