 The place was named Kulon Ponorogo and is now known as Kulon Progo which means Keraton Mataram western Ponorogo.The area which currently includes the district of Kulon Progo until the end of Dutch colonial rule is the territory of two districts, namely Kulon Progo which is a region of the Sultanate Ngayogyakarta and District Adikarto which is a region of the Duchy Pakualaman.Both districts were merged into Kulon Progo administration on October 15, 1951.