Azuchi religious debate
The took place between monks of the Nichiren and Jōdo sects of Japanese Buddhism, at Oda Nobunaga's Azuchi Castle in 1579. The incident was caused by a number of disturbances caused by Nichiren followers intolerant of Jōdo thought or practices. This came about in the early June 1579 after the arrival of the Jōdo priest Gyokunen Reiyo in Azuchi. When he was accosted by two Nichiren laymen, Reiyo challenged the priests who he said converted the hecklers, citing that they were mere novices. This was accepted by Nichiren masters, who sent a large delegation of priests  from Kyoto. Nobunaga, who effectively ruled over all of Japan at the time, first forbid the debate. He had a long history of low tolerance for the hypocrisy of violence or competition for power among religious groups. In addition, some scholars claimed that he feared the incident could cause a large-scale uprising in the Kinai. The Nichiren priests ignored his order so Nobunaga consented to the discussion. In the end, he ordered the Nichiren supporters responsible for the disturbances to be executed, including the evangelist Fuden Nichimon. Fearful of a more widespread persecution, the Nichiren establishment apologized for its  transgressions and promised to be more tolerant in the future, but a large indemnity was still imposed upon it. The outcome established an enforced religious tolerance in Japan.