From the fifteenth century to the sixteenth century, the Kakizaki clan, who was growing to become the feudal lord of the southern Oshima Peninsula by unifying Watari-to, was recognized as to the right of dominion and trade in the Ezo territory by Hideyoshi TOYOTOMI and Ieyasu TOKUGAWA and thus became independent from the Ando clan in both name and reality; and the Kakizaki clan changed its name to Matsumae and was elevated to Daimyo (Japanese feudal lord), by which Watari-to became Japanese in Edo period.
15世紀から16世紀にかけて、渡党を統一することで渡島半島南部の領主に成長していった蠣崎氏は豊臣秀吉・徳川家康から蝦夷地の支配権、交易権を公認され、名実共に安東氏から独立し、江戸時代になると蠣崎氏は松前氏と改名して大名に列し渡党は明確に和人とされた。