The nobles of Turopolje or nobles of the plain formed a group of conditional nobles in Slavonia within the Kingdom of Hungary from the second half of the 13th century to the middle of the 19th century. They lived in a self-governing "noble peasant community" and were exempted of taxation. They were partisans of the Croatian-Hungarian Party in the 1830s and 1840s. They were named after the region of Turopolje south of Zagreb.