Basava (1131–1196), also called Basavēśvara and Basavaṇṇa, was an Indian philosopher, poet, Lingayat social reformer in the Shiva-focused bhakti movement, and a Hindu Shaivite social reformer during the reign of the Kalyani Chalukya and the Kalachuri Dynasty. Basava was active during the rule of both dynasties, but his influence peaked during the reign of King Bijjala II in Karnataka, India.