It was here that King Hayam Wuruk built a stupa as a place of worship for Buddhists so that it became the Sumberawan Temple as it is now. The second is Kedung Biru. Some historians connect Kedung Biru with the location now called Dusun Biru, Gunungrejo Village, District Singosari, Malang Regency. It is called kedung (meaning: ravine) because it is on the edge of a cliff near the Klampok River. In addition to the recreational place of Raja Hayam Wuruk, it is said that this place is a sanctuary for kris made by Mpu Gandring and other royal weapons. The third is the Bureng area identified as the Wendit natural bath in Mangliawan Village, District Pakis, Malang Regency. For the context of pilgrimage, King Hayam Wuruk visited several heritage temples of the Singhasari Kingdom which aimed to dharma the ancestors (Wangsa Rajasa). Some of the temples visited include Kidal Temple (in honor of King Anusapati), Jago Temple (in honor of King Wisnuwardhana), and Candi Singasari (in honor of Raja Kertanegara). Especially for Singasari Temple, there is debate about whether it was built during the reign of Singhasari or Majapahit Kingdom. Because, according to the National Library of the Republic of Indonesia, Singosari Temple was built around 1300 AD (the reign of King Raden Wijaya) as a temple of respect, if not dharma, Raja Kertanegara along with Jawi Temple. However, there is an argument which states that this temple was being built during the reign of King Kertanegara itself as a public worship temple. The consequence of this last argument is that the construction of the temple was not completed due to the occupation of Singhasari by Jayakatwang. The Malang region (Tumapel) became one of the objects of political conflict when the Regreg war erupted (1404–1406). This area is claimed by Aji Rajanata, Bhre Wirabhumi II (Blambangan, Banyuwangi). However, the claim was opposed by Manggalawardhana, Bhre Tumapel II, who was still the son of King Hayam Wuruk. Therefore, this area is considered as the frontline of the battle involving Majapahit (West) and Blambangan ('East Majapahit). However, because Regreg war was won by King Wikramawardhana, Tumapel returned to Majapahit power. When the Majapahit Kingdom arrived Admiral Cheng Ho from China (Ming Dynasty) in 1421 AD, he agreed with King Wikramawardhana (1389–1429 AD) to place Ma Hong Fu and Ma Yung Long as ambassadors of the Ming Dynasty at Tumapel. This can be