 The dialect is classified as informal or harsh layer in modern Sundanese language, having different layers as Javanese language.Due to the influence of the Javanese culture during the reign of the Islamic Mataram kingdom, the Sundanese language - especially in the Parahyangan area - have different layers starting from the most formal, or "halus/lemes" version, to the everyday "loma/lancaran" version and the informal or harsh version.Mataram Sultanate tried to take control over Java island, including Banten territory covering the whole West Java region.