Incidentally, some tozama daimyo, who were the TOKUGAWA clan's blood relatives or persons of high achievement, were treated equivalently to fudai daimyo, and were also conveniently called jun-fudai daimyo (quasi fudai daimyo).
なお、血縁関係や功績などにより譜代に準ずる扱いを受けている外様大名について、便宜的に準譜代大名と呼ぶこともある。