《宋史·本纪·卷四十一》
冬十月十八日，右监门卫大将军赵与改赐名贵谦，授为宜州观察使，继为沂王后代。
冬十月甲子，右监门卫大将军与奭改赐名贵谦，授宜州观察使，继沂王后。
On October 18th, Zhao Yu, the great general of the Right Imperial Guards, was given the bestowment name Gui Qien and granted the position of Censoring Commissioner of Yi Prefecture. He was then made the successor to the Wuwang descendency.