Batu, officially the City of Batu (, ), is a landlocked city in the East Java Province of Indonesia. It is about 20 km to the northwest of Malang. Formerly, it was a part of Malang Regency; but in 2001, Batu became an independent city legalized by Act No. 11 of 2001, when it became an independent municipal city with its own mayor and council. With a population of 213,046 people at the 2020 Census, it lies on the southern slopes of Mount Arjuno-Welirang. Its population largely consists of Javanese. The town used to be a recreation place for the Dutch colonial officers in the Dutch colonial area (before 1945). Batu means "rock" in Indonesian. History Since the 10th century, the area of Batu and its surroundings has been known as a resting place for the royal family, because the region is a mountainous area with comfortable air, also supported by the beauty of natural scenery as a characteristic of mountainous regions. During the reign of Mataram Kingdom under King Sindok, a royal official named Mpu Supo was ordered by the King to build a royal family resting place in the mountains with nearby water springs. With a hard effort, finally Mpu Supo discovered an area which is now better known as the tourist area of Songgoriti. With the approval of King Sindok, Mpu Supo began to build the Songgoriti area as a royal family retreat and built a temple named Supo Temple. From some local community leaders, it has been told that the title Batu comes from the name of a cleric follower of Prince Diponegoro named Abu Ghonaim or referred to as the Kyai Gubug Angin which later the local community was familiar with calling it Mbah Wastu. From Javanese cultural habits that often shorten and shorten the designation of someone's name which is considered too long, also to make it shorter and faster when calling someone, finally Mbah Wastu is called Mbah Tu to be Mbatu or Batu as a term used for a mild climate city in East Java. The history of Abu Ghonaim's existence as a forerunner and person known as a community leader who started the babad alas and was used as inspiration from the designation of the Batu region, in fact Abu Ghonaim himself was from the Central Java region. Abu Ghonaim as a loyal follower of Prince Diponegoro, intentionally left his native