Mạc Đĩnh Chi
He served three Trần Dynasty emperors — first Trần Anh Tông until 1314 , then his son Trần Minh Tông from 1314 to 1319 , and finally the grandson Trần Hiến Tông after 1329 . 
<triplet> Trần Anh Tông <subj> Trần Dynasty <obj> family <triplet> Trần Minh Tông <subj> Trần Dynasty <obj> family <subj> Trần Anh Tông <obj> father <subj> Trần Hiến Tông <obj> child <triplet> Trần Hiến Tông <subj> Trần Dynasty <obj> family <subj> Trần Minh Tông <obj> father