However, over time this rule came to be broken and for financial or other reasons, it was not rare for an illegitimate child of a lord not adopted by a family to be appointed as a Karo or forced to leave the master's family, generating a branch family with territory.
しかし次第にこの原則は崩れ、財政難などから、藩主の庶子は、養子縁組先がないと、家老はおろか給人級の家臣として分家させられることも珍しくなくなった。