Ichinomiya (一宮, also 一の宮 or 一之宮, first shrine) is a Japanese term for the chief Shinto shrines in each of the pre-modern provinces.[1]
The ichinomiya are the shrines with the highest shrine rank in an area.[2] Shrines of the lower rank are called ninomiya (二宮, second), sannomiya (三宮, third), shinomiya (四宮, fourth), and so forth.