[1][2] His full royal name was Kanjeng Gusti Pangeran Adipati Arya Mangkunegara IX.

Prior to his accession he was named Gusti Pangeran Hadiningrat Sujiwa Kusuma.

His accession was controversial because for the first time in Indonesian history, Mangkunegaran involved relatives outside the core to participate in the decision.

He was born in Surakarta the son of Mangkunegara VIII with brothers crown prince G.P.H.

Prince Sudjiwo Kusumo was previously married to Sukmawati Sukarnoputri, the third daughter of Indonesia's founding president Sukarno and his wife Fatmawati.

[4] After his ascension to throne, he married Prisca Marina, the only daughter of former ambassador and military officer Yogi Supardi, on 28 June 1990.