However, in the Kamakura period, since the Hojo clan, who gained power since the Kamakura bakufu (Japanese feudal government headed by a shogun) was established and succeeded in exterminating their political enemies, seized shikken (regent for shogun) posts in the bakufu, those in the lineage of eldest son in the Hojo clan began being promoted to Shoshiinojo, and Hojo clan members and powerful gokenin (an immediate vassal of the shogunate in the Kamakura and Muromachi through Edo periods) were promoted to court ranks such as Jushiinoge.
しかし、鎌倉時代以降となると鎌倉幕府成立以降、実力をつけて次々に政敵駆逐を果たした北条氏が幕府の執権職を掌握して以降は、北条氏嫡流が正四位上まで昇るようになり、北条氏一門や有力御家人が従四位下などの官位に昇るようになった。