Sultan Pungeran al-adil ("the Just sultan Pangeran") / Blank. 19 mm, 1.14 grams.

The Demak Sultanate was Javanese Muslim state located on Java's north coast in Indonesia, at the site of the present day city of Demak. Foundation of Demak is traditionally attributed to Raden Patah, also known as Pangeran al-Patah or al-Fatah (1475-1518), a Javanese nobility related to Majapahit royalty.  The Sultanate lasted from about 1478 to 1548. Despite its short duration, the sultanate played an important role in the establishment of Islam in Indonesia, especially on Java and neighboring area.