| Tochio Castle | |
|---|---|
栃尾城 | |
| Nagaoka, Niigata, Japan | |
 Tochio Castle | |
| Type | Mountaintop castle |
| Site information | |
| Owner | Uesugi clan |
| Condition | ruins |
| Site history | |
| Built | 15C |
| Built by | ? |
| Demolished | 1610 |
| Events | Siege of Tochio Siege of Otate |
| Garrison information | |
| Past commanders | Uesugi Kenshin, Honjō Saneyori, Honjō Hidetsuna |
Tochio Castle (栃尾城, Iino-jō) was a castle structure in Nagaoka, Niigata, Japan.[1] The site is located on a 227-meter mountain.[2] Young Uesugi Kenshin spent five years in the castle.[3][4]
The exact date of the castle's foundation is unknown but built in the Muromachi period. In 1543, Uesugi Kenshin left Kasugayama Castle and entered the castle as a joint commander by Nagao Harukage`s order.[4]
In 1544, Kenshin made his first battle against local lords opposed to the Nagao clan in the castle and broke the siege.[5]
In 1548, Kenshin returned to Kasugayama Castle as a feudal lord of the Nagao clan.[6] The castle is now only ruins, with some earthenwalls, well and moats.[4] Its ruins have been protected as a Prefectural Historic Site.[4]