 It refer to Cirebon has been established as a Muslim state, just like those of Demak and Gresik.After the news of the Portuguese-Sunda alliance in 1522 became known, Gunungjati nevertheless asked Demak sultanate to send troops to Banten.It was likely his son, Hasanudin, who commanded this military operation in 1527, just as the Portuguese fleet was arriving of the coast at Sunda Kelapa, to capture these towns.