《宋史·列传·卷三》
太祖认为德昭年幼，想让他渐渐进封王，授官德昭为贵州防御使。
太祖以德昭冲年，欲其由渐而进，授贵州防御御。
Emperor Taizu thought that De Zhao was still young and wanted to promote him to be a king gradually, and therefore appointed De Zhao as the Defense Commissioner of Guizhou.