Betrayal at Honnoji
       In 1582, Hashiba Hideyoshi invaded Bitchu province, laying siege to Takamatsu Castle. However, the castle was vital to the Mori clan, and losing it would leave the Mori home domain vulnerable. Led by Mori Terumoto, reinforcements arrived outsideTakamatsu Castle, and the two sides came to a standstill. Hashiba asked for reinforcements from Oda Nobunaga.
     It has often been argued that Hideyoshi in fact had no need for reinforcements, but asked Nobunaga anyway for various reasons. Some believe that Hideyoshi, envied and hated by fellow generals for his swift rise from a lowly footman to a top general under Oda Nobunaga, wanted to give the credit for taking Takamatsu to Nobunaga so as to humble himself in front of other Oda vassals. Some also speculate that Hashiba or his retainers in fact wanted to put Nobunaga in a vulnerable position in the front where he might be more easily assassinated. Others believe that Hashiba in fact was the mastermind behind Akechi Mitsuhide's treachery.
     In any case, Nobunaga ordered Niwa Nagahide to prepare for an invasion of Shikoku and Akechi Mitsuhide to assist Hideyoshi. En route to Chugoku region, Nobunaga stayed at Honnoji, a temple in Kyoto. Since Nobunaga would not expect an attack in the middle of his firmly-controlled territories, he was guarded by only a few dozen personal servants and bodyguards.
     Nevertheless, Akechi Mitsuhide suddenly had Honnoji surrounded in a coup,forcing Oda Nobunaga to commit suicide. At the same time, Akechi forces assaulted Nijo Castle, and Oda Nobunaga killed himself after sending the kôtaishi away. Together with him died his young page (o-kosho), Mori Ranmaru, who had served him faithfully for many years and was still in his teens at the time. Ranmaru's loyalty and devotion to his lord were widely known and praised at the time.
Just 11 days after the Honnoji incident, Mitsuhide was killed at the Battle of Yamasaki.
Young Life/Owari/Key Events/Honnoji/Oda Blog