Siege of Ryūgasaki
The 1545 siege of Ryūgasaki was one of many battles fought by Takeda Shingen in his bid to control Shinano Province during Japan's Sengoku period. The fortress was a satellite castle of Fukuyo, and was held by Tozawa retainer Yoshinaga Mitoyoshi. Yoshinaga himself was killed in battle while the fortress fell. References
Turnbull, Stephen (1998). 'The Samurai Sourcebook'. London: Cassell & Co. p211

Ryugasaki 1545
Ryugasaki 1545
1545 in Japan
Conflicts in 1545
Ryūgasaki