Xu Jingzong
Xu Jingzong ( 592 – September 20 , 672 ) , courtesy name Yanzu , posthumously known as Duke Gong of Gaoyang , was a Chinese cartographer , historian , and politician who served as a chancellor in the Tang dynasty . 
<triplet> Xu Jingzong <subj> chancellor <obj> position held <triplet> chancellor <subj> Tang dynasty <obj> country