wife or senior concubine of husbands older brother (old); elder sister (old)

Si Wenming, personal name of Yu the Great 大禹[Da4 Yu3]

Si Wenming, personal name of Yu the Great 大禹[Da4 Yu3]

sisters-in-law (old); various concubines of a husband (old)

Baosi, concubine of King You of Zhou 周幽王[Zhou1 You1 wang2] and one of the famous Chinese beauties