the Chinese, Lý Nhật Tôn violated propriety by arrogantly proclaiming himself an emperor. Because of recently violence in the borders, local Song officials went so far as to conspire with the Cham king to put pressure on the Vietnamese. A Vietnamese embassy was permitted to offer tribute to the court of Renzong in Kaifeng, arriving on 8 February 1063 to deliver gifts, including nine tamed elephants. The king sent a second embassy to the Sung court in 1067 to congratulate Shenzong's coronation, and received gifts from the Sung emperor including a golden belt, silver ingots, 300 bolts of silk, two horses, a saddle inlaid with gold and silver plating. As Champa constantly harassed the area near the border between the two nations and sometimes intruded deeply to loot, in 1069 Lý Thánh Tông himself led an seaborne invasion of Champa. He defeated the Cham army, burned Vijaya, and captured the king of Champa, Rudravarman III on Khmer territories. Rudravarman III implored Lý Thánh Tông to release him in exchange for three areas, known as Địa Lý, Ma Linh, and Bố Chính. These now form part of Quảng Bình Province and Quảng Trị Province. Nhật Tôn's victorious army brought back thousands more Cham prisoners and resettled them near capital Thăng Long. These captives contributed Cham music to Viet court; they included Tao Tang, a Chinese monk who had been living at the Cham court. Under the guidance of his new royal patron Nhật Tôn, he established Đại Việt's third Thiền Buddhist sect. Alongside the popular Vinītaruci sect that Lý Công Uẩn had favored and the more ascetic and scholarly Võ Ngôn Thông sect of Lý Phật Mã, the kingdom acquired a princely order that was patronized by later Lý monarchs and catered to court interests, but also incorporated more cosmopolitan influences, including elements of Chinese Buddhism. Religious activities Unlike his father and grandfather, Thánh Tông does not seem to have been much engaged with either the Buddhist or the spirit world. In 1057 Thánh Tông erected a Buddha statue in Thăng Long as the reincarnation of a pantheon of spirits, including the ancient Lạc saint Gióng and the Chinese god of war, Chen Wu, while several years later the minister Lý Đạo Thành erected a Buddha statue and established a garden dedicated to a Bodhisattva in the grounds of the provincial Temple of Literature in Nghệ An. In the capital, Thánh