Fushimi Castle
One of the rooms features a blood stained ceiling that was originally a floorpiece from Fushimi Castle. The blood is from Torii Mototada, Tokugawa Ieyasu's retainer, and several other men who committed seppuku when the castle they were garrisoned in as being overrun by Ishida Mitsunari's forces during the siege of Fushimi castle. This battle delayed the Ishida forces, which gave Tokugawa Ieyasu time to prepare for the Battle of Sekigahara and eventually unify Japan under the Tokugawa Shogunate. Thus, Torii Mototada's act of valor is honored through having the bloody floorpiece serve as a piece of Hōsen-in.