Judging from his high official court rank for a man of his age, it is considered that Tokimasa's legitimate son was Masanori whose mother, Maki no kata, was from a noble family, rather than Yoshitoki HOJO who was Masanori's older paternal half-brother.
若年での官位の高さなどから見て、時政の嫡男は異母兄の北条義時ではなく、貴族出身である牧の方を母とする政範であったと見られる。