After the official coronation ceremony in Longvek in the year of Monkey, 2128 BE, 1584 AD, Maha Sakarach 1506, His full name was called "Preah Reach Angkar Preah Chey Chestha Thireach Reameathipadei" He was a young king, reigning at the age of 11, and his younger brother, Ponhea Ton, who was only six years old, held the rank of viceroy.

[1] In 1590 AD, the mother of Chey Chestha, the first wife of Preah Sattha I, became seriously ill and could not be cured by the royal doctors in the palace.

The Royal Court summoned the two monks, who were spies from the Siamese kingdom, who were famous for their diseases and related dark deeds.

[3]​ [4] In 1593 AD, the Siamese learned that the bamboo forest fence that protected Longvek City had been breached by the people to extort money during the Kingdom of Cambodia during the economic crisis.

Only then did Srei Soriyoapor send a letter to Preah Satha about the war, seeing that a large number of Siamese troops were attacking Longvek city.

Preah Satha was so frightened that he led the royal family to flee the palace and fled to Srey Santhor district, Kampong Cham province.

With some artillery shells damaged, Soriyoapor sat in tears and announced that he and the last battle in Longvek, and the army officers all volunteered to die in this war.

The Siamese king ordered the dismantling of the Longvek palace, even the tiles of the Siamese palace, collecting property in Longvek, Bronze Cow statue that keep the Sastra rules of the Kingdom of Cambodia, including the Emerald Buddha Statue made during the royal reign of Lompong Reachea.

The Spanish governor finally agreed to send troops to Cambodia in 1596 AD, but their arrival was overdue: Longvek was burned and destroyed by the Siamese during May 1593.

Until December that Preah Ream Cheung Prey raised 30,000 troops to defeated Siamese out of Longvek, And he moved the capital to Srey Santhor, Kampong Cham province, and ascended the throne in 1594 AD, He royal named for reign call Borom Reamea II.