Akechi Mitsuhide

Governing Tanba before the rebellion

Before attacking Honnōji, Mitsuhide was an important retainer governing Tanba under Nobunaga. Based at Kameyama, he managed troops, supplies and regional relationships. Dated letters reveal activity before the rebellion despite uncertainty about his early life.

Kameyama’s proximity to Kyoto made its roads and regional information significant. Holding captured territory demanded communication and resources, not only a garrison. Military and administrative responsibilities accumulated before 1582 and underpinned Mitsuhide’s position within the regime.

Dated devotional letters and the attack of 1582

Letters concerning prayers at Atago survive from 1575 and 1579. Their dates and recipients document religious and regional relationships. They do not directly establish the later rebellion’s motive; treating all earlier activity as a warning of Honnōji erases its contemporary setting.

He attacked Honnōji in 1582, where Nobunaga died. His son Nobutada also died that day, at the separate Nijō residence rather than Honnōji. A sequence of actions does not establish inner motives.

The army entering Kyoto from Kameyama brought about the deaths of father and son at separate sites. Mitsuhide then needed bases in the Kinai and support from other commanders, under severe time pressure before Yamazaki.

A short interval to gather support before Yamazaki

After defeating Nobunaga, Mitsuhide sought control and support in the Kinai, but Oda retainers did not automatically follow him. On the thirteenth day of the sixth lunar month in 1582, he lost at Yamazaki and died during retreat. “Three-day rule” is a label for brevity, not the literal interval since the attack on the second day.

Tanba’s local remembrance emphasizes governing work as well as revolt. Different judgments focus on different acts. Letters and sites move study beyond a good-or-bad verdict toward command, administration and succession.

Turning points

1. Sixteenth century

   Born; the exact year is unknown.

2. 1575

   Participated in Tanba campaigns; a letter to Atago survives.

3. Late 1570s

   Established a base at Kameyama Castle.

4. 1579

   A letter concerning prayers at Atago survives.

5. Sixth month of 1582 in the historical calendar

   Attacked Honnōji and later lost at Yamazaki.

Their legacy

Removing his lord did not secure the support of surviving retainers. The brief period before Yamazaki records Mitsuhide’s failure to turn a successful attack into durable government.