However, Toshihisa, the fourth head of the Doi family, could produce no heir, so the linage of the Doi family was once terminated, and use of the family name was permitted again with 70,000 koku rice yields (later 10,000 koku were added). しかしながら、4代目の利久のときに無嗣廃絶となり、7万石(後に1万石加増)で家名再興が許可された |