Liyangan site is located in the Village Purbosari, District Ngadirejo, Temanggung this increasingly complete the historical record of Waterford associated with the ancient Mataram kingdom is in the Rakai Pikatan. This Temanggung history began to be recorded on the inscription of Wanua Tengah III in the year 908 AD describes that Temanggung was originally in the form of kademangan gemah ripah loh jinawi, one of which is Pikatan territory.
This is where the Hindu monastery was founded by the sister of the ancient Mataram king Rahyangta I Hara, while the king is Rahyangta Ri mdang (King Sanjaya) who ascended the throne in 717 AD (Mantyasih Inscription). By the heir to the throne of Rake Panangkaran who ascended the throne on 27 November 746 M, this Pikatan Bihara obtained bangkok in Sawah Sawah.
If associated with this Gondosuli inscription there is a clear picture that from Temanggung District extends westward to Bulu sub-district and so on is a very fertile and serene region marked with the place of Bihara Pikatan.