Duan Jifei
Duan Jifei's older sister Duan Yuanfei was the empress of Murong De's older brother , Murong Chui , the founding emperor of Later Yan . 
<triplet> Duan Jifei <subj> Duan Yuanfei <obj> sibling <triplet> Duan Yuanfei <subj> Duan Jifei <obj> sibling <subj> Murong Chui <obj> spouse <triplet> Murong Chui <subj> Duan Yuanfei <obj> spouse