Yuwen Shu
Another son of Yuwen Shu , Yuwen Shiji , however , was a friend of Tang Dynasty's founder Li Yuan ( Emperor Gaozu ) , and after Li Yuan established Tang remained an influential official . 
<triplet> Yuwen Shu <subj> Yuwen Shiji <obj> child <triplet> Yuwen Shiji <subj> Yuwen Shu <obj> father <triplet> Li Yuan <subj> Tang Dynasty <obj> time period