Families that had the Shingu family name in the Shingu district of Ki Province ruled the area from the period of the Northern and Southern Courts (Japan) to the Sengoku (Warring States) period.
紀伊国の新宮地方には新宮姓を名乗る一族が存在し、南北朝時代(日本)から戦国時代(日本)まで支配を続けた。