Province data
1488 –1559
最上氏・伊達氏・大宝寺氏・小野寺氏・戸沢氏・安東氏・由利衆
諸勢力並立最上氏・伊達氏・大宝寺氏・小野寺氏・戸沢氏・安東氏・由利衆ほか(各地に分立)1560
1561 –1569
1570 –1580
1581
1582
1583
1584
Month 10Date Masamune Succeeds as Clan Head
Date Terumune retired and passed leadership to Date Masamune, who became head of the Date clan at age eighteen.
1584 map — the year of Date Masamune Succeeds as Clan Head1585
1586
1587
1588
1589
1590
1591 –1597
1598 –1599
1600
Month 10Keicho Dewa Campaign (Battle of Hasedo)
An Uesugi army under Naoe Kanetsugu invaded Mogami territory but failed to take Hasedo Castle and withdrew after news of Sekigahara.
See this battle in detail →1601
Uesugi Kagekatsu Is Reduced to Yonezawa
After Sekigahara, Uesugi Kagekatsu was reduced from 1.2 million koku in Aizu to 300,000 koku at Yonezawa and shifted the center of his domain there.
1601 map — the year of Uesugi Kagekatsu Is Reduced to YonezawaSado Becomes a Shogunate Domain
Following the discovery of gold and silver mines at Aikawa, Sado Island was placed under direct shogunate control. Bugyō Okubo Nagayasu administered Sado, which soon became a crucial pillar of shogunate finances.
1601 map — the year of Sado Becomes a Shogunate Domain1602 –1603
1604 –1616
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