Meanwhile, while most of Li Mi's holdings had surrendered to Yang Tong, Xu Shiji did not. Li Mi's follower Wei Zheng suggested to Emperor Gaozu that he be sent to encourage Xu to submit to Tang, and Emperor Gaozu sent Wei to do so. Xu Shiji decided to submit, but believing that it was proper that Li Mi himself make the submission, since he was still, in Xu's eyes, the sovereign of the lands, he declined to write a submission to Emperor Gaozu, only a report to Li Mi. Li Mi submitted Xu's report to Emperor Gaozu, and Emperor Gaozu, impressed with Xu, bestowed on him the imperial surname of Li.