Etymology and distribution of 北筋.

Kitasuji 【北筋】^{レベル3
About 90}  The Japanese surnames etymology dictionary.

Oosaka-fu Izumisano-shi , Wakayama-ken . Terrain . Variant of 下城 . In Oosaka-fu Izumisano-shi Wakayama-ken Iwade-shi The priest of Negishi Shingon sect of Negishi Shingon sect in Negoro called in the meaning "It fell from the castle" after burning down at the same temple in 1585 (Tensho 13 years) Tell him that you changed your family name to Shimo surname who has few strokes at Meiji New surname from castellation. 下城 Shimojou reference.