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2020.05.18 "result of 2019 Sunpu-jo Castle trace castle tower excavation" announcement! 3

About Sunpu-jo Castle castle tower excavation result of 2019 when we performed news release on January 7, 2020, we explain about new opinion about construction of a castle of castle tower this time for the Tensho era period accompanied with discovery of small castle tower (Toyotomi).
※"Result of 2019 Sunpu-jo Castle trace castle tower excavation" announcement! To link following as for 1, 2
http://www.shizuoka-bunkazai.jp/blog/202001/post-261.html
http://www.shizuoka-bunkazai.jp/blog/202001/post-262.html

The Tensho era period castle tower northwest corner. JPG[as for the Tensho era period castle tower northwest corners-cut square part height for 3.8m]
Small castle tower Tainan side stone wall. JPG[a part of small castle tower Tainan side]


Castle tower (we announce by the mayor regular news conference of October 16, 2018) is west side about 37m X north about 33m (size on the detection side), and it is supposed that it is to the largest size in comparison with other castles for the Tensho era period for the Tensho era period discovered in investigation of 2018.
Stone wall called "surface pile up" (nozurazumi) with stone of nature and stone which do not process very much is built by how to load. A lot of building stones approximately 1-3m in width were used, and there was very big stone as we were equal to Osaka-jo Castle and *gakudai of Hideyoshi.

From this, state-of-the-art that we choose huge stone and load progressing, expensive stone wall onto at the time is used, and existence of the system enabling that is thought about.

Stone. JPG[we discover building stones more than castle tower north 3m for the Tensho era period]
The Tensho era period castle tower. JPG[stone wall exists from castle tower west side fundus to altitude of 4.6m for the Tensho era period]


In addition, gold leaf tile (tile which stuck gold leaf on pattern part) was excavated near the stone wall of castle tower in large quantities for the Tensho era period.
Gold leaf tile is used with a part of the castle of Toyotomi of this time.

IMG_1062.JPG[excavated gold leaf tile]

Kazuji Nakamura of daimyo of Toyotomi subordinates that it was thought that castle tower had characteristic of Toyotomi from castle tower of scale that was equal to Osaka-jo Castle of Hideyoshi and characteristic of the construction of a castle system and tile (including gold leaf tile) which established that for the Tensho era period, and it was in the master of Sunpu-jo Castle in 1590 (Tensho 18) as of 2018 announced by hypothesis that constructed a castle.

The Tensho era period (Toyotomi) castle tower. JPG[the Tensho era period castle tower Taito side]

However, by discovery of this small castle tower, new viewpoint came out.
The reason is because it is thought that this small castle tower is equal to "sho*shu" of Sunpu-jo Castle written in "kachunichiki" which Ietada Matsudaira in charge of construction of a castle of Sunpu-jo Castle in vassals of Ieyasu wrote down (in small castle tower).

Small castle tower corners-cut square part stone wall. JPG[small castle tower southeast corners-cut square part]

There is record that was building of small castle tower on castle tower, February 11, 1589 (Tensho 17) on May 12, 1588 (Tensho 16) in "kachunichiki".
If this castle tower and small castle tower are castle tower of the Tensho era period found by excavation and small castle towers, it is that Ieyasu built Sunpu-jo Castle for the Tensho era period. Therefore possibility that Ieyasu built castle tower (castle tower) for the Tensho era period to have castle of Toyotomi and common characteristic by discovery of small castle tower and small castle tower (small castle tower) surfaced. (※)

But Sunpu-jo Castle for the Tensho era period seems to have been under influence of the Toyotomi government when we thought about role that Sunpu-jo Castle served as under the Toyotomi Administration at the time, the staff for construction of a castle or technical security generally.
It was made with castle of Ieyasu who became No. 2 daimyo of Hideyoshi Toyotomi subordinates, and how would there be participation of the Toyotomi government in those days?

※Description of castle tower, small castle tower of the Tensho era period in "kachunichiki" was always grasped, but was not able to tie remains of an ancient structure and description of diary discovered this time as remains of an ancient structure of small castle tower were not discovered as of 2018.

Photograph 19.JPG[with eaves plain tile (left) eaves plain tile (right)]

On the other hand, there was interesting characteristic on excavated gold leaf tile.
Next blog introduces that. Don't miss it.

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