The collateral line of the Utsunomiya clan includes the Oda clan, Hitachi no kuni Shugo (Provincial Military Governor of Hitachi Province) and the Mumo clan regarded as the ancestor of the Okubo clan, which was from Mikawa Province and governed the Odawara domain as a fudai daimyo (feudal lord and hereditary vassal to the Tokugawa family) in the Edo period.
傍系として、常陸国守護小田氏や、三河国の出身で江戸時代には徳川家譜代大名として小田原藩を治めた大久保氏が祖と仰ぐ武茂氏がいる。