1552: Kantō Kanrei Uesugi Norimasa Leaves Hirai Castle - Sengoku Shogun Map
Under pressure from the Hōjō, Kantō Kanrei Uesugi Norimasa abandoned his base at Hirai Castle and later sought refuge with Nagao Kagetora in Echigo. This marked a major advance in Hōjō expansion toward Kōzuke.
Major events
- 1552-月日不詳: Uesugi Norimasa Leaves Hirai Castle — Under pressure from the Hōjō, Kantō Kanrei Uesugi Norimasa abandoned his base at Hirai Castle and later fled to Echigo.