In the 19th century, Sardhana was the capital of the Begum Samru, born as Farzana Zebunisa in 1751, and considered to be the only Catholic ruler in India. She married in her early teens, a mercenary soldier Walter Reinhardt Sombre of Luxembourg, who was operating in India. Samru is but a mispronunciation of his surname Sombre. On his death in 1778 she succeeded to the command of his mercenary troops, and subsequently converted to Catholicism in 1781, under the name Johanna.