be prosperous but with few wheeled vehicles. Two hero stones dated to 1398 in Bhatkal record a rebellion in Tulu Nadu. At this time, the Alupa rule was basically ended and replaced with Barakur and Mangaluru rajyas, sometimes united into one Tulu Rajya. The governors were often transferred: during the reign of Devaraya II, there were eight governors of Mangaluru rajya. During the usurpation of Saluva Narasimharaya, he did much to improve the horse trade, which had suffered under previous rulers with his governor Mallappa Nayaka. When Krishnadevaraya came to power, he largely relied on the local feudal chiefs to remain obedient. Sadashiva Nayaka of Keladi ruled over Barakuru, Mangaluru, Chandragutti and Araga rajyas. Portuguese arrival When the Portuguese first arrived in the region, they described Tulunadu as a prosperous trading country populated by both Moors (Muslims) and Genitles (Hindus). They were received well by Krishnadevaraya. But when they discovered Muslim merchants in Mangalore and Barakur, they blockaded the rivers leading there in 1526, they conquered Mangalore facing some resistance. Franciscan friars began preaching in Mangalore and the surrounding regions, while the Portuguese began collecting tribute in grain and other goods. In 1530, the Portuguese stormed the Mangalore fort again facing resistance they easily annihilated. In 1547, Aliya Rama Raya entered into a treaty with the Portuguese by which all imports and exports passed through their hands. This treaty was highly unpopular among the local chiefs, who often resisted Portuguese tributary collection. Some chiefs even supported the alliance of sultanates which defeated Aliya Rama Raya at the Battle of Talikota, hoping to get rid of Portuguese influence. In 1571, this failed when the Portuguese defeated Bijapur at Goa. Rani Abbakka, the Chowta wife of Banga Raja and the Queen of Ullal, fought the Portuguese. She stopped paying tribute to the Portuguese, causing them to send a fleet to Mangalore and force a settlement, but soon she aided the enemies of the Portuguese and again stopped tribute payment. In 1566, she defeated a Portuguese expedition and killed its commander, causing the Portuguese in Goa to send an armada to subdue her in 1567. On 15 January 1568, however, the Portuguese defeated the Rani and forced her to sign a new treaty. Nayakas of Keladi The Nayakas of Keladi were a Veerashaiva family which had ruled a large portion of Tulu Nadu starting in the 16th century, when they had control over