Tang Jian

Tang Jian (Chinese: 唐俭) (579–656) was a famous diplomatist of Tang Dynasty.

Family
Tang's grandfather Tang Yong (唐邕) was the chancellor of Northern Qi Dynasty. Tang's family had had a close friendship for generations with the Li family, the founding family of the Tang Dynasty; Tang's father, Tang Jian (唐鉴), was a close ally of Li Yuan (李渊).

Tang was born in Jin Yang (晋阳), current Taiyuan City, the capital of Shanxi Province.

Tang had 3 sons:
 * Tang Shanshi (唐善識)
 * Tang Heshang (唐河上)
 * Tang Guan (唐観)

Diplomat
Tang played an important diplomatic role in erasing Eastern Tujue's power over East Asia. Tang was sent by Emperor Taizong of Tang to the Khan of Eastern Tujue (Göktürks). His main task was to persuade Jiali Khan to surrender.

In parallel, General Li Jing's army campaigned and attacked Eastern Tujue by surprise, and Khan was captured immediately.