<P> Further south in the Deccan region, a Hoysala commander, Singeya Nayaka - III (1280--1300 AD) declared independence after the Muslim forces of the Delhi Sultanate defeated and captured the territories of the Seuna Yadavas of Devagiri in 1294 CE . He created the Kampili kingdom, but this was a short lived kingdom during this period of wars . Kampili existed near Gulbarga and Tungabhadra river in northeastern parts of the present - day Karnataka state . It ended after a defeat by the armies of Delhi Sultanate . The triumphant army led by Malik Zada sent the news of its victory, over Kampili kingdom, to Muhammad bin Tughluq in Delhi by sending a straw - stuffed severed head of the dead Hindu king . Within Kampili, on the day of certain defeat, the populace committed a jauhar (ritual mass suicide) in 1327 / 28 CE . Eight years later, from the ruins of the Kampili kingdom emerged the Vijayanagara Kingdom in 1336 CE . </P> <P> In the first two decades after the founding of the empire, Harihara I gained control over most of the area south of the Tungabhadra river and earned the title of Purvapaschima Samudradhishavara ("master of the eastern and western seas"). By 1374 Bukka Raya I, successor to Harihara I, had defeated the chiefdom of Arcot, the Reddys of Kondavidu, and the Sultan of Madurai and had gained control over Goa in the west and the Tungabhadra - Krishna River doab in the north . The original capital was in the principality of Anegondi on the northern banks of the Tungabhadra River in today's Karnataka . It was later moved to nearby Vijayanagara on the river's southern banks during the reign of Bukka Raya I, because it was easier to defend against the Muslim armies persistently attacking it from the northern lands . </P> <P> With the Vijayanagara Kingdom now imperial in stature, Harihara II, the second son of Bukka Raya I, further consolidated the kingdom beyond the Krishna River and brought the whole of South India under the Vijayanagara umbrella . The next ruler, Deva Raya I, emerged successful against the Gajapatis of Odisha and undertook important works of fortification and irrigation . Italian traveler Niccolo de Conti wrote of him as the most powerful ruler of India . Deva Raya II (called Gajabetekara) succeeded to the throne in 1424 and was possibly the most capable of the Sangama dynasty rulers . He quelled rebelling feudal lords as well as the Zamorin of Calicut and Quilon in the south . He invaded the island of Sri Lanka and became overlord of the kings of Burma at Pegu and Tanasserim . </P> <P> Firuz Bahmani of Bahmani Sultanate entered into a treaty with Deva Raya I of Vijayanagara in 1407 that required the latter to pay Bahmani an annual tribute of "100,000 huns, five maunds of pearls and fifty elephants". The Sultanate invaded Vijayanagara in 1417 when the latter defaulted in paying the tribute . Such wars for tribute payment by Vijayanagara repeated in the 15th century, such as in 1436 when Sultan Ahmad I launched a war to collect the unpaid tribute . </P>

Who is considered as the greatest of all the vijayanagar rulers
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