Among the territories, the ownership of which was authorized by the above mentioned documents, does not include either Tosaminato or Fujisaki-cho, which was the clan's place of origin according to the genealogy, however, there are several interpretations on the names of these documents, for example, 'Minato' means Tosaminato, Tosaminato is included in 'Ezonosata' or included in 'Tsugaru-nishihama' (in the latter, Minato [harbor] is interpreted as Ohata-gyoko [fishery harbor]), etc.
上記で安堵された所領には、十三湊も、系図により本来の根拠地とされている藤崎町も含まれていないが、「湊」を十三湊とする見解、十三湊は「蝦夷の沙汰」に含まれるとする見解、「津軽西浜」に含まれるとする見解（「湊」は大畑漁港と見る）などがある。