Mangkunegara I
| His Royal Highness Mangkunegara I | |
|---|---|
Posthumous depiction of Mangkunegara I, 2014. | |
| 1st Duke of Mangkunegaran | |
| Reign | 1757–1795 |
| Successor | Mangkunegara II |
| Born | Raden Mas Said 7 April 1725 Kartasura |
| Died | 28 December 1795 (aged 70) |
| Spouses |
|
| Issue | Kanjeng Pangeran Harya Prabu Hamijaya |
| House | Mataram |
| Father | Kanjeng Gusti Pangeran Adipati Arya Mangkunegara, Crown Prince of Mataram |
| Mother | Raden Ayu Wulan |
| National Hero of Indonesia S.K. President No. 048/TK/1988 dated 17 August 1988. | |
Mangkunegara I, 1st Duke of Mangkunegaran also known as Prince Sambernyawa ("Life Reaping Prince"), his birth name was Raden Mas Said (7 April 1725 – 28 December 1795), established the Puro Mangkunegaran, in Surakarta, Java Island. Thus, he was the first ruler of The Principality of Mangkunegaran.