The succession disputes in Lanna continued, but the position of Lanna between the aggressive states of Burma and Ayutthaya necessitated that the kingdom be brought back to order. In recognition for his assistance against Ayutthaya, and his strong familial ties to Lanna, King Photisarath was offered the throne of Lanna for his son Prince Setthathirath, who in 1547 was crowned King in Chiang Mai. Lan Xang was at the height of their political power, with Photisarath as King of Lan Xang and Setthathirath his son as King of Lanna. In the elaborate court ceremony recorded in the "Chiang Mai Chronicles", Setthathirath took possession of the Emerald Buddha as his personal palladium (which would later become the palladium of Vientiane) and was given the princesses Nang Thip and Nang Tonkham as queens.