Ibrahim Adil Shah II was king of the Sultanate of Bijapur and a member of the Adil Shahi dynasty. Under his reign the dynasty had its greatest period as he extended its frontier as far south as Mysore. He was a skilful administrator, artist, poet and a generous patron of the arts. He reverted to the Sunni sect of Islam, but remained tolerant of other religions, including Christianity. However, during his reign high-ranking Shiite immigrants became unwelcome and in 1590, he ordered the confinement of criers who read the khutba in the Shia form. After his reign, increasing weakness permitted Mughal encroachment and the successful revolt of the Maratha king Shivaji, who killed the Bijapur general Afzal Khan and scattered his army. The dynasty left a tradition of cosmopolitan culture and artistic patronage whose architectural remains are to be seen in the capital city of Bijapur.