Siege of Musashi-Matsuyama (1537)

Siege of Musashi-Matsuyama
Part of the Sengoku period
Date1537
Location36°02′15″N 139°25′14″E / 36.0375°N 139.42056°E / 36.0375; 139.42056
Result Siege successful, castle falls to Hōjō
Belligerents
Uesugi clan garrison Hōjō forces
Commanders and leaders
Uesugi Tomooki
Nanbada Norishige
Hōjō Ujitsuna
Hōjō Genan
Hōjō Tsunashige
Strength
7,000 men

The 1537 siege of Musashi-Matsuyama was the first of several sieges of Matsuyama castle in Japan's Musashi province over the course of the Sengoku period (1467-1603). The Uesugi clan controlled the castle in 1537, but lost it to the Hōjō clan in this siege; they would regain it, and lose it once more in 1563.

The Uesugi sent for help during this siege by hiding a message inside a dog's collar; the tactic was ultimately unsuccessful.