Basilica of Our Lady of Graces, also known as Churches among the Churches, is dedicated to Virgin Mary. The Church was built by Begum Samru, a Nautch girl of 14 who married a European mercenary soldier Walter Reinhardt Sombre. Samru converted to Roman Catholicism in 1781 and adopted the name Joanna Nobilis. She is regarded as the only Catholic ruler in India, and ruled the Principality of Sardhana in 18th and 19th century.[2] The Church is the largest in North India.[3]