Province data
1518 –1559
一条房家・本山氏・安芸氏・津野氏・吉良氏・香宗我部氏・長宗我部国親ほか
諸勢力並立土佐一条氏と七雄が並立し長宗我部氏が再興・伸長1560
Month 8Progress in Unifying Tosa
Chōsokabe Kunichika destroys the Aki clan, establishing control over most of Tosa.
1560 map — the year of Progress in Unifying Tosa1561 –1569
1570 –1574
1570
AutumnMotochika Chosokabe's advance toward unifying Tosa
Having subdued the Motoyama and Aki clans, Chosokabe Motochika controlled central and eastern Tosa. The remaining rivalry with the Ichijo clan of western Tosa (Hata district) would be the final stage of his unification of the province.
1570 map — the year of Motochika Chosokabe's advance toward unifying Tosa1571
AutumnExpansion of Chōsokabe Motochika's control over Tosa
In Shikoku, Chōsokabe Motochika further solidified control over Tosa, entering a phase where he sought to expand into Awa.
1571 map — the year of Expansion of Chōsokabe Motochika's control over Tosa1573
AutumnChōsokabe Motochika's Preparations for Expansion into Awa
Having advanced the unification of Tosa, the Chōsokabe clan sought to expand its influence into Awa and Iyo. The balance of power in Shikoku gradually began to break down.
1573 map — the year of Chōsokabe Motochika's Preparations for Expansion into Awa1575 –1580
1581
1582
1583
1584
1585
Month 7Chōsokabe Motochika Submits to the Toyotomi Government
Following the Hashiba invasion of Shikoku, Chōsokabe Motochika submitted and was confirmed in Tosa Province.
See this battle in detail →1586
1587
1588
1589
1590
1591 –1597
1596
San Felipe Runs Aground in Tosa
The Spanish ship San Felipe ran aground at Urado in Tosa. The seizure of its cargo and interrogation of its crew contributed to intensified persecution of Christians.
1596 map — the year of San Felipe Runs Aground in Tosa1598 –1599
1600
1601 –1602
1601
1/8Yamauchi Kazutoyo Enters Urado Castle
After being granted Tosa Province following Sekigahara, Yamauchi Kazutoyo traveled overland from Kannoura and entered Urado Castle.
1601 map — the year of Yamauchi Kazutoyo Enters Urado Castle1603 –1616
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