According to a book written by MIURA "Tetteiteki ni Nihon Rekishi no Gobyu o Tadasu" (Correct errors in Japanese history thoroughly), the Emperor Taiho was said to be born in Kyomaru, Totomi Province (present Haruno-cho, Tenryu Ward, Hamamatsu City, Shizuoka Prefecture).
三浦の著書『徹底的に日本歴史の誤謬を糺す』によれば、大宝天皇は、、遠江国京丸(現在・静岡県浜松市天竜区春野町)で誕生したという。