Indravarman VI was a King of Champa from 1440 to 1441. After his father's death in 1440, Indravarman VI turned against the Khmers

Khmer Empire

The Khmer Empire was one of the most powerful empires in Southeast Asia. The empire, which grew out of the former kingdom of Chenla, at times ruled over and/or vassalized parts of modern-day Laos, Thailand, Vietnam, Burma, and Malaysia. Its greatest legacy is Angkor, the site of the capital city...

. In order to maintain Dai Viet neutrality, he gave up the important province of Indrapura

Quang Nam Province

Quảng Nam is a province on the South Central Coast of Vietnam. It is bordered by Thua Thien-Huế province to the north, the nation of Laos to the west, Kon Tum Province to the southwest, Quảng Ngãi Province to the southeast, the South China Sea to the east, and the city of Da Nang to the...

, which had been the royal residence of the Cham rulers. Now that the threat of the Dai Viet had ended, Indravarman turned his attention to the Khmer Empire and succeeded in defeating its king, Ponhea Yat

Ponhea Yat

Ponhea Yat was the last king of the Khmer Empire.He was the son of Srey Soriyovong and became king in 1393. That year he was forced to flee Angkor Thom when the Siamese captured it, resettling first in Tuol Basan , and after that became flooded, to Chaktomuk .In Phnom Penh, the king ordered the...

, causing the final desertion of Angkor

Angkor

Angkor is a region of Cambodia that served as the seat of the Khmer Empire, which flourished from approximately the 9th to 15th centuries. The word Angkor is derived from the Sanskrit nagara , meaning "city"...

. Now relieved from the threats of its neighbors, Champa entered a time of peace and spirituality. A new religion, Islam

Islam

Islam . The most common are and .   : Arabic pronunciation varies regionally. The first vowel ranges from ~~. The second vowel ranges from ~~~...

, was introduced from Java

Java

Java is an island of Indonesia. With a population of 135 million , it is the world's most populous island, and one of the most densely populated regions in the world. It is home to 60% of Indonesia's population. The Indonesian capital city, Jakarta, is in west Java...

. However, this brought its consequences. The next time Annam would attack, Champa would not receive help from its former Buddhist and Hindu

Hindu

Hindu refers to an identity associated with the philosophical, religious and cultural systems that are indigenous to the Indian subcontinent. As used in the Constitution of India, the word "Hindu" is also attributed to all persons professing any Indian religion...

allies.