The record asserting that the productiveness in Aizu increased after the fall of the Shingu clan was found in "Todera-hachimangu Nagacho (record) of the Kokoroshimizu-hachimanjinja Shrine," which reflected the fact that the Aizu Basin had been devastated due to fights between the Shingu and Ashina clans.
新宮氏滅亡後、会津は豊穣になったとの記載が『心清水八幡神社塔寺八幡宮長帳』にあり、このことから新宮氏と蘆名氏との戦いで会津盆地が荒廃していたことが窺える。