Relations between the Sinhalese populace, including the Kandyan aristocracy, and the Nayakkars remained fraught throughout the 18th and early 19th centuries. As early as Narendrasinha's reign, attempts at appointing Nayakkars to prominent positions in court had caused rebellion, including one in 1732 that the king had only been able to crush with Dutch assistance. The Nayakkar nobility – which tended to be exclusivist and monopolise access to the king – was seen as forming an elite group privileged above the native aristocracy, the powerful adigars. Though Sri Vijaya Rajasinha's reign (1739–1747) proved relatively peaceful, his successor Kirti Sri Rajasinha had to deal with two major rebellions. The first, in 1749, was directed at his father Narenappa; the second, in 1760, was a far more dangerous insurrection which attempted to replace him with a Siamese prince. Despite these tensions, however, the Nayakkar dynasty endured, establishing support by their patronage of Buddhism and Kandyan culture.