What are the "nine kindred" (九族 - 구족)?

The "Nine Kindred" (九族 - 구족)

1. great-great-grandfather (高祖 - 고조)
2. great grandfather (曾祖 - 증조)
3. grandfather (祖父 - 조부)
4. father (父 - 부 / 父親 - 부친)
5. oneself (自身 - 자신)
6. son (子 - 자)
7. grandson (孫子 - 손자)
8. great-grandson (曾孫 - 증손)
9. great-great-grandson (元孫 - 원손 / 玄孫 - 현손)

祖孫 (조손) means "grandfather (祖) and grandson (孫) ."
上 (上) means "before," and 祖上 (조상) means "ancestors."
先 (선) also means "before, and 先祖 (선조) and 祖先 (조선) also mean "ancestors."
後 (후) means "after," and 後孫 (후손) means "descendants."