The kingdom of Vijayanagar was founded by Harihara and Bukka, two of five brothers, who had served in the administration of both Kakatiya and Kampili before those kingdoms were conquered by the Delhi Sultanate in the 1320s. It enjoyed its greatest political and cultural prominence under Emperor Krishna Deva Raya (who ruled from 1509-1529 CE) and lasted until 1646 , when it was conquered by the Muslim Sultans of Bijapur and Golkonda.