Kiá»Âu Công Tiá» n (chữ Hán: ç¯堬羡) (870 - 938) was a general in the court of Dðáng ÃÂình Nghá»Â, a Vietnamese Jiedushi of Ténh Hải quân who took over the position in 931. In 937, Kiá»Âu Công Tiá» n assassinated the Jiedushi to seize his position and thus provoked a revolt led by Ngô Quyá»Ân who sought revenge his lord and father-in-law Dðáng ÃÂình Nghá»Â. In response to the attack, Kiá»Âu Công Tiá» n appealed to Liu Yan, the emperor of Southern Han, for reinforcements but he was defeated and executed by Ngô Quyá»Ân before the army of Southern Han entered the country. Ngô Quyá»Ân subsequently won a decisive victory over the Southern Han in the Battle of Bạch ÃÂằng River and would go on to inaugurate the continuous independence of Vietnam for the first time in nearly a thousand years.
According to Từ ÃÂiá»Ân Bách khoa toàn thð Viá»Ât Nam, the date of birth of Kiá»Âu Công Tiá» n was unknown but he was from Phong Châu (now Phú Thá»Â, Vietnam) where he was a notable of the region. Commonly, the chữ Hán characters of his name (ç¯堬羨) are transcribed in Vietnamese as Kiá»Âu Công Tiá» n but there are some sources such as the Khâm ÃÂá»Ânh Viá»Ât sá» thông giám cðáng mục or the Viá»Ât Nam sá» lðợc of Trần Trá»Âng Kim use the transcription Kiá»Âu Công Tiá»Ân. In several ancient historical books of China like the New History of the Five Dynasties, his family name (, Kiá»Âu) was recorded by another character which is often transcribed as Kiá»Âu in Vietnamese.
When Dðáng ÃÂình Nghá» took over the position of Jiedushi of Ténh Hải quân in 931 from the Southern Han, Kiá»Âu Công Tiá» n was chosen as a general in the court of Dðáng ÃÂình Nghá»Â, according to the ÃÂại Viá»Ât sá» lðợc, Kiá»Âu Công Tiá» n was the adopted son of the Jiedushi. In the third month of lunar calendar in 937, Kiá»Âu Công Tiá» n assassinated Dðáng ÃÂình Nghá» in order to seize his position of Jiedushi. Nine months later, Ngô Quyá»Ân, another general of Dðáng ÃÂình Nghá»Â, commanded his army from the ÃÂi province (now Thanh Hóa) to rise a revolt against Kiá»Âu Công Tiá» n in revenging his lord and father-in-law Dðáng ÃÂình Nghá»Â. In response to Ngô Quyá»Ân's military campaign, Kiá»Âu Công Tiá» n decided to seek help from the emperor of Southern Han Liu Yan who also wanted to profit the chaos in Ténh Hải quân to regain control of Giao Chá»Â. Because of his action against Dðáng ÃÂình Nghá» and the call on Chinese aid, Kiá» u Công Tiá» n is denounced by many Vietnamese historians as a usurper in history of Vietnam.
After accepting the appeal of Kiá»Âu Công Tiá» n, Liu Yan appointed his son Liu Yuancao the new Jiedushi of Ténh Hải quân, which was renamed as King of Giao Chá» (Giao vðáng), and personally conducted the reinforcements for Kiá»Âu Công Tiá» n. Before the troops of Southern Han entered the territory of Ténh Hải quân, Ngô Quyá»Ân got ahead by defeating and executing Kiá»Âu Công Tiá» n in 938 and prepared to catch the army of Liu Yan in Bạch ÃÂằng River. Finally Liu Yan's army was defeated in the Battle of Bạch ÃÂằng River where his son Liu Yuancao was killed in action, the emperor of Southern Han had to abandon his military campaign and Ngô Quyá»Ân thus successfully secured the country from invaders and marked the beginning of the independence of Vietnam from Chinese authorities. After the death of Ngô Quyá»Ân in 944, Vietnam again fell into troubled times with the 12 Lords Rebellion in which Kiá»Âu Công Hãn and Kiá»Âu ThuáºÂn, grandsons of Kiá»Âu Công Tiá» n, were among the principal warlords.
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