The Vijayanagara Emperors were tolerant of all religions and sects, as writings by foreign visitors show. The kings used titles such as Gobrahamana Pratipalanacharya (literally, protector of cows and Brahmins) and Hindurayasuratrana (lit. upholder of Hindu faith) that testified to their intention of protecting Hinduism and yet were at the same time staunchly Islamicate in their court ceremonials and dress. The empire's founders, Harihara I and Bukka Raya I, were devout Shaivas (worshippers of Shiva), but made grants to the Vaishnava order of Sringeri with Vidyaranya as their patron saint, and designated Varaha (the boar, an avatar of Vishnu) as their emblem. Over one-fourth of the archaeological dig found an Islamic Quarter not far from the Royal Quarter. Nobles from Central Asia's Timurid kingdoms also came to Vijayanagara. The later Saluva and Tuluva kings were Vaishnava by faith, but worshipped at the feet of Lord Virupaksha (Shiva) at Hampi as well as Lord Venkateshwara (Vishnu) at Tirupati. A Sanskrit work, Jambavati Kalyanam by King Krishnadevaraya, called Lord Virupaksha Karnata Rajya Raksha Mani (protective jewel of Karnata Empire). The kings patronised the saints of the dvaita order (philosophy of dualism) of Madhvacharya at Udupi.