 As the centre of Islamic learning in the region, Cirebon influence penetrate inland and influenced the recently established Mataram Sultanate in Southern Central Java.However, since the king was more interested to become ulama, Cirebon fail to recruit Mataram into its sphere power, and Mataram grew more powerful ever since.By the 17th century Sultanate Mataram rose to be a regional power under Sultan Agung of Mataram's reign.