Complex sentence: Pakubuwono X (also transliterated Pakubuwana X) (29 November 1866-20 February 1939) was the tenth Susuhunan (ruler of Surakarta) and a major contributor to improvements at the Royal Graveyard of Imogiri, where he himself is buried.
Split into simpler sentences: Pakubuwono X (also transliterated Pakubuwana X) (29 November 1866-20 February 1939) was the tenth Susuhunan (ruler of Surakarta). He was also known major contributor to improvements at the Royal Graveyard of Imogiri, where he himself is buried.