Zai of Dan first ruler of Dan, a client state of Zhou dynasty Parents Tai Si King Wen of Zhou Children Siblings Count of Yong Marquess of Feng Royal Uncle of Wey–Kang Xian of Guan Gao, Duke of Bi King Wu of Zhou Du of Cai Count of Xun Bo Yikao Chu of Huo Zhenduo of Cao Xiu of Teng Count of Yuan Dan of Zhou Royal Uncle of Gao Yu of Cheng Zheng of Mao Nangong Kuo