However, in the Sengoku period (period of warring states), Honpuku-ji Temple, which was in a commanding position in Katata-shu, was excommunicated three times by a slander of Renjun (Rennyo's sixth son and Shonyo's maternal grandfather), the guardian of Shonyo, 10th chief priest, who led believers in Otsu.
ところが、戦国時代_(日本)に入ると、堅田門徒の指導的地位を得ていた本福寺は大津の門徒を率いていた本願寺10世証如の後見人蓮淳（蓮如の6男で証如の外祖父でもある）の讒言によって、3度にわたる破門を受けた。