Zhu Bian fled to the South with the Song imperial court but his wife was killed by Jin soldiers.
Once they arrived in the Jin territory of Yunzhong Prefecture (雲中, modern Datong) in 1130, the Jurchen general Wanyan Zonghan put them under house arrest and would not hear of their requests.
[1][2] In 1132, the Jurchens told Wang Lun and Zhu Bian that they were willing to negotiate towards a treaty, and that one of them could return to Song with a letter.
Back in Lin'an, he entered the palace to thank Emperor Gaozong of Song and advised him to be always wary and prepared to war with Jin.
The emperor wanted to confer him titles, but Zhu didn't receive them due to strong oppositions from the treacherous chief councilor Qin Hui.