The clans who received the position of Kuni no Miyatsuko were representative local clans; in certain aspect they were integrated into the local offices of the Yamato Sovereignty so that there were some clans that were in the position of Tomo no Miyatsuko in local sense and took control of the common people in the region.
代表的な地方豪族をさし、一面ではヤマト王権の地方官に組みこまれ、また在地の部民（べみん）を率（ひき）いる地方的伴造の地位にある者もあった。