Tobigasuyama Fort
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History
Tobiǵasuyama-toride was occupied by Takeda forces during te siege of Nagashinojō in 1575. The garrison consisted of commanders Kawakubo Nobuzane, with 250 warriors under him, and Komiyama Nobuchika, with another 250 under him. Tobiǵasuyama-toride was captured in a pre-dawn attack by over 4,000 Tokugawa soldiers under the command of Sakai Tadatsugu, a general of Tokugawa Ieyasu, in the preamble to the battle of Shitaraǵahara.
For more information see Nakayama-toride.
Visit Notes
Tobiǵasuyama-toride is a yamajiro (mountaintop castle) ruin in Norimoto Township, Shinshiro Municipality. The fortress consists of seven or so baileys formed from the flattening of the ridge. In the topmost bailey there is a hokora (mini-shrine). It seems this topmost bailey may have been perforated by a trench; on either side of the trail there are cuttings which look like trenches. Particularly, there is a tatebori (climbing trench) complex with two chutes divided by berms; judging by cuttings in the ridge, this trench network once continued through the topmost bailey. I checked the far side of the bailey and found a large pit; I don't know its origin.
The ridge descends and there is a hollowed out area - called a 'saddle' in Japanese - where there is a shed. It's easy to imagine the Takeda army encamped here. There is another couplet of baileys on from here. They are separated by what appears to be a trench and dorui (earthen ramparts). In the lower of this pair of baileys are monuments and an explanation board for the castle site.
The ridge swings down sharply after that, and there is a series of several bailey complexes. These lower baileys are heavily terraced. It seems they were subsequently cultivated, so it's hard to know what was originally sculpted for the fort. The impression is of a row of conicular stepped pyramids of earth. The lowest bailey, which now contains a cemtery, is thought to have had a look-out for observing Nagashino Castle.
Gallery
| Castle Profile | |
|---|---|
| English Name | Tobigasuyama Fort |
| Japanese Name | 鳶ヶ巣山砦 |
| Alternate Names | 鳶ヶ巣文殊山砦 |
| Founder | Takeda Katsuyori |
| Year Founded | 1575 |
| Castle Type | Mountaintop |
| Castle Condition | Ruins only |
| Historical Period | Pre Edo Period |
| Artifacts | Kuruwa, Tatebori, Dorui, &c. |
| Features | trenches |
| Visitor Information | |
| Access | Nagashinojō Station on the Iida Line; 15 minute walk to trail |
| Visitor Information | 24/7 free; mountain |
| Time Required | 60 minutes |
| Location | Shinshiro, Aichi Prefecture |
| Coordinates | 34° 55' 15.78" N, 137° 34' 4.30" E |
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| Admin | |
| Added to Jcastle | 2023 |
| Contributor | ART |
| Admin Year Visited | Viewer Contributed |
| Friends of JCastle | |
| Jōkaku Hōrōki | |
| Shiseki Tanbōki | |
| Umoreta Kojō | |
| Jōkakuzukan | |
| Yogo | |
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