Edo Shigetsugu

…A castle built in the area of ​​Edo in Musashi Province. Edo Castle began as a residence built by Edo Shigetsugu in the early 12th century on a plateau overlooking Edo Bay in the northeastern part of Sakurada-go, Ebara County, and is believed to have been located on the plateau of the Honmaru of the early modern Edo Castle. After the Edo clan's descendants split into many branches and their power declined, Ota Sukenaga (Dokan), the head retainer of the Ogigayatsu Uesugi clan, who was the Kanrei of the Kanto region, built a castle here in 1457 (Choroku 1) during the Muromachi period. …

*Some of the terminology that refers to "Edo Shigetsugu" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…武蔵国江戸の地に建設された城郭。江戸城の発端は，12世紀初めごろ江戸重継が，荏原郡桜田郷の北東部，江戸湾に臨む台地上に設けた居館で，その場所は近世江戸城の本丸台地上と推定されている。江戸氏の子孫が多くの庶流に分かれて勢力が衰えたあと，室町時代の1457年(長禄1)に関東管領扇谷上杉氏の家宰太田資長(道灌)がこの地に築城した。…

※「江戸重継」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報