Tagai 【田貝】4 The Japanese surnames etymology dictionary.
② Aichi-ken Toyota-shi The origin of Tsubuhara (Wachibara) town. A place name with a record since the Edo period. Nagano-ken Kamiminochi-gun Shinano-machi Tradition by priests of the Jodo -ji Temple in Kashiwara. In 1223 (the 2nd year of the 2nd year) in the former location of the temple it is said that it was built as Ming specialty of Tendai sect.