Chu Lingyuan
Chu Lingyuan was the daughter of the commandery governor Chu Shuang ( 褚爽 ) , who was a grandson of the official Chu Pou ( 褚裒 ) , making Chu Lingyuan a grandniece of Emperor Kang's wife Empress Chu Suanzi . 
<triplet> Emperor Kang <subj> Empress Chu Suanzi <obj> spouse <triplet> Empress Chu Suanzi <subj> Emperor Kang <obj> spouse