Edo Castle
The warrior Edo Shigetsugu built his residence in what is now the "Honmaru" and "Ninomaru" part of Edo Castle, around the end of the Heian or beginning of the Kamakura period. The Edo clan left in the 15th century as a result of uprisings in the Kantō region, and Ōta Dōkan, a retainer of the Ogigayatsu Uesugi family, built Edo Castle in 1457.