南匈奴 / Southern Xiongnu
南匈奴 / Southern Xiongnu enters the wiki through Hanji 998 as the frontier succession note closing the episode. The source says 于扶罗 dies, his younger brother 呼厨泉 succeeds as chanyu, and the group is stationed at Pingyang.
The source does not connect this note deeply to Gongsun Zan’s collapse. It preserves a late-Han frontier transition alongside the Youzhou branch and links the page to the broader 匈奴 archive.