After Zhu Yuanzhang (Hongwu Emperor) founded the Ming dynasty, he designated his eldest son, Zhu Biao, as crown prince, and enfeoffed his all other sons and a grandnephew as vassal princes. Fiefs of nine of these princes were located at frontier regions for defense. Hongwu Emperor also posthumously bestowed his late patrilineal and matrilineal relatives with princely titles too. This article shows all princes of Ming dynasty, including non-actual princes (male imperial members and nobles had no title).(Main article: Princes of the Ming dynasty)