Full name
Lý Long Trát or Lý Long Cán (李龍翰)
Era dates
Trinh Phù (1176 - 1185) Thiên Tư Gia Thụy (1186 - 1201) Thiên Gia Bảo Hựu (1202 - 1204) Trị Bình Long Ứng (1205 - 1210).
Posthumous name
应乾御极宏文宪武灵瑞照符彰道至仁爱民理物睿谋神智化感政醇敷惠示慈绥猷建美功全业盛龙见神居圣明光孝皇帝
Temple name
Cao Tông(高宗)

House

Lý

Father

Lý Anh Tông

Mother

Đỗ Thụy Châu

Religion

Buddhism

Full name
Lý Long Trát or Lý Long Cán (李龍翰)
Era dates
Trinh Phù (1176 - 1185) Thiên Tư Gia Thụy (1186 - 1201) Thiên Gia Bảo Hựu (1202 - 1204) Trị Bình Long Ứng (1205 - 1210).
Posthumous name
应乾御极宏文宪武灵瑞照符彰道至仁爱民理物睿谋神智化感政醇敷惠示慈绥猷建美功全业盛龙见神居圣明光孝皇帝
Temple name
Cao Tông(高宗)

Lý Cao Tông (1176–1210), born Lý Long Trát, courtesy name Long Cán, was the seventh emperor of the Lý dynasty, ruling for 35 years. Some consider his reign to begin the falling into decay of the Lý Dynasty because of his erroneous determinations. However, many historians agree that he had an important influence in Vietnamese history.

He was the sixth son of Lý Anh Tông. His mother was Đỗ Thụy Châu who later became Empress Dowager Đỗ. He was born Lý Long Cán (or Trát) on May 25, 1173 according to the Eastern calendar. He was enthroned when he was very young, at the age of three, as one of the youngest Emperors in Vietnam's history. Prior to this, his predecessor Emperor Lý Anh Tông disposed the former Crown Prince Long Xưởng and replaced Prince Cán with this title. Tô Hiến Thành was trusted to become the regent to help the young Emperor run the court and administer his nation. It is often noted that his age and inexperience proved to be a minimal disadvantage in his ability to govern.

Tô Hiến Thành was considered a talent and competent official when he was conferred the title Regent. After the death of Anh Tông, his uppermost consort (now became Empress Dowager Chiêu Linh) wanted to dethrone her son Long Xưởng, who was the former Crown Prince. But thanks to Tô Hiến Thành's peremptoriness, Cán eventually became the successor of the throne.

Tô Hiến Thành fell ill not long after. At death's door, he recommended Empress Dowager Đỗ an official named Trần Trung Tá. She said a good word for his recommendation but it was merely something to please the dying people. After he died in 1179, she chose Đỗ An Di to become the Regent for her son.

In 1181, Lý Long Xưởng led his army in a mutiny and looted the capital. One year later, Empress Dowager Đỗ appointed Lý Kính Tu to teach her son. He was a capable official tutoring the young emperor in literature and morality. Thereafter, Empress Dowager Chiêu Linh and his son gave up the plot to mutiny.

The Emperor was meek and lenient while young, but after he grew and directly administered his reign, he became more and more cruel and sent the nation into turmoil. He loved to hunt and built himself large palaces at his people's expense. The codes and rules of his reign were obscure and immoral, leading the people to conflict with the local administration and rebel from the injustice and drudgery. At worst, they devastated buildings and looted villages.

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Wikipedia