Ogasawara | Michihiro Ogasawara | Ogasawara clan | Ogasawara Tadazane | Ogasawara Sadamune | Ogasawara Nagatsune | Ogasawara Nagakiyo |
1592 (Bunroku 1): Ogasawara Sadayori claims to have discovered the Bonin Islands; and the territory was granted to him as a fief by Toyotomi Hideyoshi.