In addition, the Edo bakufu government took the policy of abolishing daimyo families cantered on the tozama daimyo that had aided the Toyotomi family, and many daimyo families were abolished for the reasons that no heir existed or they violated a bakufu government law, also producing lots of 牢人.
更に江戸幕府は旧豊臣系大名の外様大名を中心に大名廃絶政策を取り、多くの大名が世嗣断絶、幕法違反などの理由によって取り潰され、これによっても大量の牢人が生じた。