What key details about xu jingzong can be extracted from the following bio? Bio: xu jingzong -lrb- 592 -- september 20 , 672 -rrb- , courtesy name yanzu , posthumously known as duke gong of gaoyang , was a chinese official who served as a chancellor in the tang dynasty . allied with emperor gaozong 's wife , empress wu -lrb- later known as wu zetian -rrb- , xu jingzong was exceedingly powerful throughout most of gaozong 's reign .
A:
- zi is yanzu -lrb- yanzu yen-tsu -rrb-- title is chancellor- pinyin is xu jingzong- kingdom is the tang dynasty- death date is september -rrb- 20 , 672 -lrb- aged 79 -- 80- trad is - simp is - birth date is 592- name is xu jingzong- wg is hsu ching-tsung- post is duke gong kao-yang kung kung -rrb- gong of gaoyang -lrb- gaoyang gong