Province data
1523 –1540
1540
Month 9Siege of Yoshida-Koriyama
Amago Haruhisa attacked Yoshida-Koriyama Castle, but Mōri Motonari defended it with Ōuchi reinforcements.
See this battle in detail →1541 –1550
1546
Mōri Takamatsu Succeeds to Headship
Mōri Motonari transferred the headship to his eldest son Takamatsu. Even after stepping down, Motonari retained actual authority over military and diplomatic matters.
1546 map — the year of Mōri Takamatsu Succeeds to Headship1550
Establishment of Mōri Ryōkawa System
Mōri Motonari sent his second son Motoharu as an adopted heir to the Kikkawa clan and his third son Takataka to the Numata Kobayakawa clan, tasking them with commanding the Seto Inland Sea naval forces and defending the Sanin region.
1550 map — the year of Establishment of Mōri Ryōkawa System1551 –1554
1554
Month 6Battle of Oshikibata
Mōri Motonari, who had broken with the Suo clan, defeated Miyagawa Kai-no-kami of the Suo forces at Oshikibata. This victory led to the Battle of Miyoshima the following year, 1555.
1554 map — the year of Battle of Oshikibata1555 –1559
1555
Month 10Battle of Itsukushima
Mōri Motonari crossed to Itsukushima, struck Sue Harukata's camp and broke it. The Ōuchi lost their grip on power and the Mōri rose in the Chūgoku region.
See this battle in detail →1560 –1562
1563 –1571
1563
Mōri Takamatsu's Sudden Death and Terutoto's Succession
Mōri Takamatsu died suddenly during an expedition to Izumo, and his grandson Terutoto succeeded to the headship. Motonari became Terutoto's guardian.
1563 map — the year of Mōri Takamatsu's Sudden Death and Terutoto's Succession1571
6/14Mōri Motonari Dies at Age 75
Mōri Motonari died of illness at Koriyama Castle at age 75. After that, his grandson Terutoto inherited the Mōri clan with the support of his two uncles Kikkawa Motoharu and Kobayakawa Takataka.
1571 map — the year of Mōri Motonari Dies at Age 75AutumnMōri defense of the western provinces
Mōri Terumoto maintained defensive lines in the Chūgoku region, preparing against Amago remnants and Oda westward advance while carefully assessing turmoil in Kinai.
1571 map — the year of Mōri defense of the western provinces1572 –1580
1573
SummerStabilization of the West by the Mōri Clan
Mōri Terumoto remained wary of Oda expansion westward while maintaining defensive lines in the Chūgoku region. Although there was still room for coordination with Yoshiaki, the rapid change in Kinai politics led the Mōri to adopt a more cautious stance.
1573 map — the year of Stabilization of the West by the Mōri Clan1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591 –1597
1598 –1599
1600
毛利輝元ほか
石田方関ヶ原で国を抑えた大名の属した陣営で塗る／関ヶ原合戦後の減封・転封により領主を再編1601 –1602
1603 –1616
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