Tan (Chinese: 譚; pinyin: Tán; Wade–Giles: Tan2; 1046–684 BCE) was an ancient state located in present-day Shandong Province, China.

Following this victory, he founded a number of small subordinate vassal states [4] to be ruled by his brothers and generals.

The Tan rulers, who were reputed to be descendants of Yu the Great (the legendary ancient king and founder of the Xia dynasty), were given the then-new heredity title of zijue (tzu-chueh – 子爵) or viscount.

After ten days, his siege was successful, and Xian Li fled with 200 members of the royal court to the State of Ju, where his son, Qi Yi (祁義), was the ruler.

[5] Others argue that the ancient capital is the present-day Mingshui Sub-district of the city of Zhangqiu in Shandong Province.