History
Osaka Castle is one of the few surviving epic structures in Japan that dates back to its feudal past, since the time of the samurai and warlords.
But its history is a turbulent one, with Osaka Castle being damaged and destroyed numerous times.
Read on to discover more about the history of this renowned Japanese castle!
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When Was Osaka Castle Built?
Osaka Castle was built in in 1583 by warlord Toyotomi Hideyoshi. Construction of Osaka Castle started in 1583, and was completed in 1597.
This towering structure, definitely awe-inspiring at that time, was designed to serve as a strategic military stronghold during Japan’s turbulent period, and was meant to awe both allies and adversaries alike.

Osaka Castle History Timeline
Below is a detailed timeline table capturing the key events in Osaka Castle’s history.
Year | Event | Details |
---|---|---|
1583 | Construction Begins | Commissioned by Toyotomi Hideyoshi, Osaka Castle’s construction marks the birth of one of Japan’s most iconic fortresses. |
1597 | Castle Completed | The main tower is finished, symbolizing Hideyoshi’s power and ambition during a period of national unification. |
1614–1615 | The Siege of Osaka | In a fierce conflict between the Toyotomi clan and Tokugawa forces, the castle is nearly destroyed, signaling a dramatic shift in power. |
1620 | Reconstruction Initiated | Under the Tokugawa shogunate, rebuilding efforts transform the site into a formidable military fortification with modern design elements. |
1931 | Modern Reconstruction | The main tower is rebuilt using modern techniques, carefully designed to echo its historical grandeur and later serves as a museum. |
1997 | Museum Renovation | Extensive restoration work leads to the reopening of the castle museum, complete with interactive exhibits and panoramic views of modern Osaka. |
Present Day | Cultural Icon | Osaka Castle remains a vibrant landmark, hosting seasonal festivals and drawing millions of visitors who relish its blend of history and modernity. |

How Many Times Was Osaka Castle Destroyed And Rebuilt?
While historical records indicate that Osaka Castle was damaged numerous times and rebuilt, there appear to be four pivotal events of destruction:
- During the Seige of Osaka, a battle between Toyotomi’s son, Hideyori, and warlord Tokugawa Ieyasu, the castle was almost completely destroyed in 1615 and rebuilt in 1620 by the Tokugawa shogunate.
- In 1665, the castle tower was destroyed by lightning and fire, and the castle remained without a tower for a long period.
- During the Boshin War (1868-1869), the castle was again destroyed.
- Air raids during World War II targeted Osaka Castle (that served as an arsenal), and the castle suffered some damage.
Planning a trip to Osaka Castle? Visit the Osaka Castle website for the complete rundown on every single detail!
And if you’re just starting to plan your visit to Japan, check out some of the top things to do in Japan, many of which you absolutely don’t want to miss!
