Atlas of Battles

siege, early modern

Summer Siege of Osaka

Summer Siege of Osaka was a siege conducted in 1615 at Osaka Castle, in what is now Japan. It was part of Siege of Osaka, which ran from 1614 to 1615. The recorded result: Tokugawa victory. Recorded strength: 164,000 (winter); 150,000 (summer) against 120,000 (winter); 60,000 (summer).

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The ruin of Osaka Castle in C.E.1663 (H.E.11,663).
The ruin of Osaka Castle in C.E.1663 (H.E.11,663).. New York Public Library, Public domain, via Wikimedia Commons.
Fought1615
WhereOsaka Castle, Japan34.640N, 135.520E
OutcomeTokugawa victory
BelligerentsTokugawa shogunate and its loyalist banners: Matsudaira clan; Date clan; Honda clan; Tōdō clan; Kuroda clan; Ii clan; Hosokawa clan; Maeda clan; Hachisuka clan; Niwa clan; Asano clan; Mizuno clan; Sakai clan; Kyōgoku clan; Satake clan; Uesugi clan; Mōri clan; Sanada clanagainstToyotomi clan and its loyalist banners: Oda clan (defected to Tokugawa side); Tsutsui clan
Part ofSiege of Osaka1614 to 1615

Where it sits in Siege of Osaka

Battle of Imafuku, 1600Winter Siege of Osaka, 1614Battle of Kizugawa, 1614Battle of Shigino, 1614Battle of Noda-Fukushima, 1614Battle of Bakurōbuchi, 1614Summer Siege of Osaka, 1615Siege of Sanada Maru, 1615Burning of Sakai, 1615Battle of Kashii, 1615Battle of Yao, 1615Battle of Dōmyōji, 1615Battle of Tennōji, 161516001615Summer Siege of Osaka, 1615
13 placed engagements of Siege of Osaka in time order; taller ticks are more widely documented. Each tick is a link.

Record

Date1615 (year precision)
to June 1615
PlaceOsaka Castle, Japan
34.640N, 135.520E
KindSiege, early modern
Territorial changeDestruction of the Toyotomi Clan
Strength164,000 (winter); 150,000 (summer)120,000 (winter); 60,000 (summer)
Commanders
Summer Siege of OsakaSummer Siege of OsakaSiege of OsakaSiege of MitsujiBattle of TennōjiBattle of SharijiBattle of TennōjiSiege of OsakaNagoyaKyotoKōbeWakayamaGifuTottoriMaizuruOkayama100 km34.640N, 135.520E
The recorded site, with the nearest other engagements in the atlas. Present-day coastlines, rivers and borders; towns from Natural Earth.

Nearest engagements

Contested ground: this site was fought over 12 times between 1547 and 1615.

In the same war

Elsewhere in 1615

Summer Siege of Osaka is one of 1,470 engagements of the 17th century in the atlas and one of 481 in present-day Japan.

Sources

Identity, coordinates, dates and the war from Wikidata Q70713505, released under CC0. Result, belligerents, commanders, strength and casualties from the infobox of the English Wikipedia article Summer Siege of Osaka, revision 1378683811, read 2026-11-14, licensed CC BY-SA 4.0; the article's text is not reproduced here. Present-day country and state from Natural Earth. Dates before 1582 follow the Julian calendar as recorded.