The siege of Uehara was the first of many steps taken by Takeda Shingen in his bid to seize control of

Shinano Province or is an old province of Japan that is now Nagano Prefecture. Shinano bordered on Echigo, Etchū, Hida, Kai, Kōzuke, Mikawa, Mino, Musashi, Suruga, and Tōtōmi Provinces. The ancient capital was located near modern-day Matsumoto, whi ...

. Uehara Castle had been controlled by Suwa Yorishige before it was taken by Shingen.

References

*Turnbull, Stephen (1998). 'The Samurai Sourcebook'. London: Cassell & Co. 1542 in Japan Uehara 1542 Uehara 1542 Conflicts in 1542 {{Japan-battle-stub