Overview

Strategic Strongpoint of Settsu

Ibaraki Castle was a flatland castle located in Ibaraki City, Osaka Prefecture, and played a significant role as one of the important fortifications in Settsu Province (northern Osaka) during the Sengoku and Azuchi-Momoyama periods. The castle is situated in the center of present-day Ibaraki City, and the Ibaraki City Municipal Cultural Heritage Museum is now installed on part of the castle ruins, with earthworks and moat remains still visible. As a landmark of the castle ruins, the "Ibaraki Castle Gate (a gate relocated from Katagiri Katsumoto's residence)" still stands and is cherished by citizens as an architectural structure associated with the castle lord.

The Rebellion of Araki Murashige

The most dramatic incident in the history of Ibaraki Castle was the rebellion of Araki Murashige that occurred in Tenshō 6 (1578). Araki Murashige (1535–1586) was a powerful retainer of Oda Nobunaga entrusted with the governance of Settsu Province, but suddenly turned against Nobunaga and withdrew to his base at Arioka Castle (present-day Itami City). At this time, Araki Muratsugu, Murashige's son, remained at Ibaraki Castle as the defending commander. Even after Arioka Castle fell under Nobunaga's siege (1579), Ibaraki Castle continued to resist for a time, but eventually opened its gates. Murashige abandoned the castle and fled, later tracing a peculiar destiny as a tea master and renga poet in his remaining years.

Nakagawa Kiyohide and the Battle of Komaki-Nagakute

After the fall of the Araki clan, Nakagawa Kiyohide became the lord of Ibaraki Castle. Kiyohide was a Toyotomi-aligned warrior sometimes counted among the "Seven Spears of Shizugatake," and as lord of Ibaraki he undertook the administration of Settsu. In the Battle of Shizugatake of Tenshō 11 (1583), Kiyohide was killed in a surprise attack by Sakuma Morimasa while defending Ōiwakuyama Fortress, and Ibaraki Castle subsequently came under the administration of Katagiri Katsumoto.

Katagiri Katsumoto and the Hidden Side of Osaka Castle

Katagiri Katsumoto (1556–1615) was a warrior who served Toyotomi Hideyoshi and is known as a figure who, while serving as lord of Ibaraki Castle and administering Settsu, also devoted himself to maintaining the Toyotomi clan after Hideyoshi's death. Katsumoto took on a difficult position as a negotiator with Tokugawa Ieyasu and withdrew from Osaka Castle before the Siege of Osaka, forced out by the Toyotomi clan. The "Katagiri Katsumoto Residence Gate (relocated at Ibaraki)" that remains at Ibaraki Castle is said to derive from Katsumoto's castle-town residence, and communicates to the present day the deep bond between Ibaraki and Katsumoto.

Connection to Swords

Araki Murashige — Ibaraki's most notorious lord — was an avid collector of celebrated swords and cultural treasures under Nobunaga's 'meibutsu' acquisition policy, before his dramatic revolt and later reinvention as a tea practitioner. The Settsu region (modern northern Osaka) housed active swordsmiths influenced by the Yamashiro and Yamato traditions, supplying Ibaraki's garrison and contributing to Toyotomi-era weapons logistics. Katagiri Katsumoto, the castle's last notable lord, embodies the sword-and-loyalty ethic in its most tragic form: a loyal retainer ground between two great powers, who never abandoned his sense of warrior honor.

Highlights

Katagiri Katsumoto's relocated gate — the sole surviving structure associated with the castle

Ibaraki City Cultural Properties Museum (at the castle site)

Site of Araki Murashige's revolt — one of the most dramatic betrayals in Sengoku history

Surviving earthworks and moat remnants in the modern city center

Excellent rail access from Osaka and Kyoto — convenient base for Kansai sightseeing

* Image is for illustrative purposes only.

City Designated Historic SiteKansai

Ibaraki Castle

茨木城

Lord

Katagiri Katsumoto, Araki Murashige, Nakagawa Kiyohide, et al.

Era

Origins in the Nanbokuchō period; major reconstruction in the Tenshō and Keichō eras

Designation

City Designated Historic Site

Location

Ibaraki City, Osaka Prefecture

Access

About 10–15 min walk from Hankyu Kyoto Line 'Ibaraki-shi Station,' or about 15–20 min walk from JR Kyoto Line 'Ibaraki Station.' About 15 min from Osaka (Umeda) and 30 min from Kyoto (Kawaramachi) by Hankyu.

Ibaraki Castle is a historic castle in Kansai dating from the Origins in the Nanbokuchō period; major reconstruction in the Tenshō and Keichō eras, whose lord was Katagiri Katsumoto, Araki Murashige, Nakagawa Kiyohide, et al..