Province data
1488 –1540
1541 –1560
1542
Ōuchi Yoshitaka's invasion of Izumo
With his victory at Kōriyama Castle, Ōuchi Yoshitaka led a massive force into Izumo and besieged Gassan Toda Castle, the stronghold of the Amago clan.
1542 map — the year of Ōuchi Yoshitaka's invasion of Izumo1543
Ōuchi Yoshitaka's withdrawal and death of Ōuchi Harumochi
The Ōuchi forces, which had been besieging Gassantoda Castle since Tenbun 11, failed to capture it and withdrew in Tenbun 12 due to Amago Haruhisa's counterattack and defections of local lords. During the withdrawal, Ōuchi Harumochi, Yoshitaka's adopted son and favored heir, died.
1543 map — the year of Ōuchi Yoshitaka's withdrawal and death of Ōuchi Harumochi1552
Amago Haruhisa Appointed Guardian of Eight Provinces
Amago Haruhisa was appointed by the shogunate as 修理大夫 (Minister of Repairs) and guardian of eight provinces in Sanin and Sanyo, adding official authority to his military expansion.
1552 map — the year of Amago Haruhisa Appointed Guardian of Eight Provinces1560
Month 10Expansion of Mōri Control in Chūgoku
Mōri Motonari attacks remnants of the Amago in San’in, expanding his sphere of influence.
1560 map — the year of Expansion of Mōri Control in Chūgoku1561 –1562
1563 –1566
1566
Gassan-Toda Castle Opens
The Mōri army cornered the Amago clan's headquarters at Gassan-Toda Castle with a prolonged siege, and Amago Yoshihisa surrendered, causing the castle to open. The Mōri clan brought Izumo and Hōki under their control.
1566 map — the year of Gassan-Toda Castle Opens1567 –1569
1570 –1571
1570
SummerKatsuhisa Amago's counter-offensive
The Amago restoration army, led by the returned-to-lay-life Amago Katsuhisa with Yamanaka Yukimori, briefly seized much of Izumo, but was heavily defeated at Mt. Fube by the returning main Mori force under Mori Terumoto, Kikkawa Motoharu and Kobayakawa Takakage, and its strength was greatly reduced.
1570 map — the year of Katsuhisa Amago's counter-offensiveSpringDefense of San’in by the Mōri
Mōri Terumoto fortifies Gassan-Toda Castle to block Amago remnants and Oda advances.
1570 map — the year of Defense of San’in by the Mōri1572 –1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591 –1597
1598 –1599
1600
1601 –1603
堀尾吉晴・堀尾忠氏
徳川政権1604 –1616
堀尾吉晴・堀尾忠晴
徳川政権Advertisement