Plaosan Temple is in Bugisan village, Prambanan district, Klaten, and it is about 1.5 kilometers east of Sewu temple. This ancient temple complex is divided into two parts, namely The North Plaosan and The South Plaosan complex. Sculptures contained Plaosan very smooth and detailed, similar to those in the Borobudur, Sari, and Sewu temples.
The Plaosan temple was built in the early 9th century AD by Rakai Pikatan reigns of the Hindu Mataram kingdom. One of the experts who supported this was De Casparis, who holds the inscription of Sri Kahulunan. The North Plaosan was built by Queen Sri Kahulunan and supported by her husband.
According to De Casparis, Sri Kahulunan is a degree of Pramodhawardani, the daughter of King Samarattungga in the Syailendra dynasty. He embraced Buddhism and married Rakai Pikatan of the Sanjaya dynasty.
Another opinion about Plaosan's development is that the temple was built before the reign of Rakai Pikatan. According to him, Sri Kahulunan Garung ruled Rakai Rakai Pikatan Mataram before. Rakai Pikatan reigned short enough to build the Plaosan temple. Rakai Pikatan established ancillary temples after the construction of the main temple.
The South Plaosan temple complex discovered an inscription in October 2003, estimated from the 9th century AD. The inscriptions of a gold plate measuring 18.5 x 2.2 cm, contains Sanskrit written in ancient Javanese script. It is certainly still unknown, but according to Mr. Tjahjono Prasodjo, the inscription reinforces Plaosan built during the reign of King Rakai Pikatan.