Uzumasa in Kadono County in Yamashiro Province was known as the home of the Hata clan, but there was also a territory of the same name in Sasara County in Kawachi Province.
秦氏の本拠地は山背国葛野郡太秦が分かっているが、河内国讃良郡太秦にも「太秦」と同名の地名がある。