In 1609 the family had conquered the Ryukyu Islands, and trade with the Ryukyus continued during the Tokugawa shogunate, when the rest of the country was forbidden contact with the outside world.

• 该家族在1609年占领了九州群岛，并在德川幕府期间持续同九州有贸易往来，而当时日本别的地区与外界的贸易是遭禁止的。