Wu Mingche
Feng Deyi was born in 568, when his grandfather Feng Longzhi (封隆之) was a high level official for Northern Qi. His father Feng Zixiu (封子繡) served as a provincial governor for Northern Zhou, but was captured by the Chen Dynasty general Wu Mingche in a battle, probably in 573, during Wu's main offensive against Northern Qi. Sometime after Northern Qi was destroyed by Northern Zhou in 577, Feng Zixiu fled back north, and was made a provincial governor by Emperor Wen of Sui, whose Sui Dynasty succeeded Northern Zhou in 581. Feng Deyi's mother Lady Lu was the sister of the official Lu Sidao. In Feng Deyi's youth, Lu Sidao often said, with regard to Feng Deyi, "This child is more intelligent than other people, and one day will surely be a highly-ranked official, even chancellor."