For example, middle or lower Kizoku families engaged in military art or military affairs were called "Tsuwamono no ie" (warrior families) and they became military Kizoku engaged in activities of seizing, searching, and capturing, or hunting down and killing criminals, constituting a base as samurai.
例えば、武芸・軍事を家業とする中下流貴族は「兵（つわもの）の家」と呼ばれ、押領・追捕・追討活動に従事する軍事貴族となり、武士の母体となっている。