Pada abad ke-9 wilayah Demak mulai terbentuk bersamaan dengan berkembangnya Kerajaan Mataram Kuno dan berproses sampai dengan abad ke-17 dimana selat tersebut tidak dapat dilayari.
In the 9th century the region of Demak were formed simultaneously with the development of the ancient Mataram Kingdom and their processes up to the 17th century where the Strait is not navigable.
In the 9th century the region began Demak formed simultaneously with the development of the Ancient Mataram Kingdom and proceed up to the 17th century where the strait was not navigable.