Juqu Mengxun
However, Tufa Rutan soon again planned revenge, and later that year he launched another attack on Northern Liang, which was initially successful, but his army withdrew at an overly leisurely pace, and when the weather turned against him, Juqu Mengxun caught him and defeated him, again sieging Ledu, forcing him to then send his son Tufa Rangan (禿髮染干) as a hostage so that Juqu Mengxun would withdraw.