Grandfather's father is great-grandfather, great-grandfather's father is great-grandfather, great-grandfather's father is Tianzu, Tianzu's father is fierce, fierce-grandfather's father is great-grandfather, great-grandfather's father is distant, and distant-grandfather's father is the originator.

Father's son is a son, son is a grandson, grandson's son is a great grandson, great grandson's son is a great grandson, great grandson's son is a grandson, great grandson's son is a grandson. Namely: Zi, Sun, Zeng, Xuan, Lai, Bi (kūn), Shang, Yun and Er.

Extended data:

There were three generations of direct blood relatives in ancient times: grandfather and grandfather.

Four generations of collateral blood relatives: uncle, uncle, uncle, uncle, uncle, uncle, uncle, uncle, uncle, uncle, uncle.

Four generations of collateral in-laws: great grandfather, great grandfather, great grandfather, great grandfather.

Five generations of collateral blood relatives: uncle, uncle, uncle, grandfather, grandfather, grandfather, grandfather.

From grandpa, grandpa, grandpa, grandpa, grandpa, grandpa, grandpa.

Grandpa, grandpa, grandpa, grandpa, grandpa, grandpa.

In ancient times, it was divided into: (near) grandfather, early grandfather, ordinary grandfather, uncle, uncle, cousin, second grandfather, second grandfather, far grandfather, far grandfather, righteous grandfather, benevolent grandfather, clan grandfather, world grandfather, grandfather and cousin.

Sometimes add posthumous title or ranking order, such as Grandpa Yuan, Grandpa Kang, Grandpa Hui, Grandpa Xian, Grandpa Wen, Grandpa Wu, Grandpa Zhao, Grandpa Mu, Grandpa Chang and Grandpa Ji.

Baidu encyclopedia-ancestors 18 generations