There are three kinds of genealogies in which Kagemasa appears; in two genealogies, clans such as Kagawa clan, Oba clan, Kajiwara clan are described as family lines which continued to Kagemasa's brothers or cousins; so we do not have accurate information on Kagemasa.
景政の登場する系図は3種類あり、内2種類では香川氏や大庭氏、梶原氏などは景政の兄弟もしくは従兄弟に連なる家系としており、確かなことは判らない。