Under the kochi komin system, basically rice fields were to be withdrawn by the government (i.e., rice fields were returned to the state) when the person who had been granted the fields died; therefore, it was exceptional that the rice fields were allowed to be inherited for generations.
なお、公地公民制においては、本来田地は本人が死んだら収公（国に返還される）されるものであり、子孫に伝来が許されるのは例外であった。