After her father, Yoshitomo, was killed in the Heiji War and Yoritomo and MINAMOTO no Mareyoshi, her brothers, were exiled, Bomon-hime was entrusted to Sanemoto GOTO and was brought up in the capital secretly. ("Heiji monogatari")
父義朝は平治の乱で討たれ、同母兄弟の頼朝・源希義が流罪となったのち、坊門姫は後藤実基に預けられ、都で密かに匿われて育てられた（『平治物語』）。