《宋史·列传·卷六十九》
知制诰王洙拜谒告归应天府，朝廷下诏抚问，封为祁国公。
知制诰王洙谒告归应天府，有诏抚问，封祁国公。
When Wang Zhu, who was in charge of drafting imperial decrees, retired to Yantianfu, the emperor sent a message of sympathy and granted him the title of Duke of Qiguo.