On September 6, 1532, after the era changed to Tenbun, the Hokke-Ikki army assembled in Kyoto and attacked temples after temples belonging to the Hongan-ji Temple community, and on September 11 they associated with the Rokkaku clan and captured Kensho-ji Temple in Otsu where Renjun stayed, and on September 23 they besieged Yamashina Hongan-ji Temple where Shonyo stayed, with a large force of 30,000 men, and on August 22 (the old calendar) Yamashina Hongan-ji Temple went up in flames.
天文に改元後の同年8月7日_(旧暦)、京都に集結した法華一揆は京都にある本願寺教団の寺院を次々に攻撃、8月12日_(旧暦)には六角氏と連合して蓮淳のいる大津の顕証寺を攻め落とし、続いて8月23日_(旧暦)には、証如のいる山科本願寺を3万の大軍が包囲して、8月24日_(旧暦)には同寺も炎上した。