Appears in: Sengoku Rance
- For real-world reference, see wikipedia:Edo or wikipedia:ja:江戸
- The lands of Edo is roughly equivalent to the combination of Musashi Province (武蔵国) and Sagami Province (相模国) of warring states Japan.
- The strong three-castle defense of Edo is probably a reference to the Odawara Castle (小田原城) in Sagami Province, which during Hojo Clan's control repelled seiges by Uesugi Kenshin and Takeda Shingen. It finally fell at the hands of Toyotomi Hideyoshi with the Third Siege of Odawara (小田原の役), which went on for three months.