In Japanese history, the 1563 Siege of Musashi-Matsuyama was a successful attempt by a combined Takeda clan-Hōjō clan army to regain Musashi province and Matsuyama castle from the Uesugi clan; the Hōjō had seized the castle from the Uesugi in the first Siege of Musashi-Matsuyama but lost it, and in 1563 so sought to regain control of it once more. Wikipedia