시모쓰케 국
The Kamakura Ashikaga Nagao branch, was called the Kamakura Nagao because they lived in Kamakura, was also given the Ashikaga Shoguns family 'Historic estate', the Ashikaga estate in Shimotsuke Province, and were lords of Kanno castle. Nagao Masanaga settled in the Koshigeyama area, and was lord of Tatebayashi castle.