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The Vijayanagara Empire (also called Karnata Empire,[3] and the Kingdom of Bisnegar by the Portuguese) was based in the Deccan Plateau region in South India. It was established in 1336 by the brothers Harihara I and Bukka Raya I of the Sangama dynasty,[4][5][6] members of a pastoralist cowherd community that claimed Yadava lineage.[7] The empire rose to prominence as a culmination of attempts by the southern powers to ward off Islamic invasions by the end of the 13th century.