Here is a list of the rulers of the Princely State of Bharatpur (Sinsinwar Jat dynasty), with dates, plus Wikipedia (or equivalent reliable) references to add to numista:
Rulers of Bharatpur
From its founding as an autonomous Jat state (early‑18th century) to its merger into independent India:
Name
Reign
Notes / Additional Info
Gokula (also Gokul Singh)
? – 1670
Early chieftain of Sinsini; precursor to later rulers. Bharatpur Online+2Bharatpur Online+2
Raja Ram
1670 – 1688
Successor in the chieftain line before formal princely status. Bharatpur Online+2Bharatpur Online+2
Churaman
1695 – 1721
Strengthened the Sinsinwar power; father of Badan Singh. Bharatpur Online+2Infogalactic+2
Badan Singh
1722 – 1755 / 1756
Founder of the formal Bharatpur state. Bharatatva Tours+4Wikipedia+4Bharatpedia+4
Suraj Mal
1755 – 1763
Son of Badan Singh; greatly expanded territory, built Deeg Palace, Lohagarh Fort. Encyclopedia Britannica+3Wikipedia+3Wikipedia+3
Jawahar Singh
1763 – 1768
Son of Suraj Mal. Wikipedia+1
Ratan Singh
1768 – 1769
Brother of Jawahar Singh. Wikipedia+1
Kehri Singh
1769 – 1771
Minor ruler after Ratan Singh. Bharatpedia+1
Nawal (Naval) Singh
1771 – 1776
Ruled before Ranjit Singh. Bharatpedia+1
Ranjit Singh
1776 – 1805
Ruled during period of conflict with British and others. Bharatpedia+2Wikipedia+2
Randhir Singh
1805 – 1823
Son of Ranjit Singh. Wikipedia+2Bharatpedia+2
Baldeo Singh
1823 – 1825
Brother of Randhir Singh. Wikipedia+2Bharatpedia+2
Durjan Sal
1825 – 1826
A usurper / claimant, briefly taking power. Bharatpedia+1
Balwant Singh
1825 / 1826 – 1853
Restored line; ruled for a number of years. Bharatpedia+1
Jashwant (Jaswant) Singh
1853 – 1893
Long reign in mid‑19th century. Wikipedia+1
Ram Singh
1893 – 1900
Reigned until deposition/exile. Wikipedia+1
Kishan Singh
1900 – 1929
Took over after regency; reign until just before India’s independence. Wikipedia+1
Brijendra Singh
1929 – 1947
Last ruling Maharaja; signed accession, after 1947 state merged. Wikipedia+1