Ramathibodi II
His eldest brother, Prince Borommaracha, was appointed the regent of Ayutthaya during his father's campaigns against Lanna kingdom.Rama Tibodi II signed a treaty with them giving the Portuguese "complete commercial freedom", the right to establish Christian missions and build churches.The Siamese commoners - called phrai (Thai: ไพร่) - were subjected to lifelong labour service to the government.Ramathibodi II died in July[11]/10 October 1529, during which a great comet appeared as recorded in the Siamese Chronicles:[clarification needed] ...In Chula Sakarat 891, being the Year of the Ox, an aerial sign, like an arrow of the God Indra, was seen in the air from the southwest to the northwest, having the color of white.On Sunday, the 8th day of the waxing moon in the 12th month, Somdet Phra Ramathibodi Chao passed away.His son, Prince Athittayawong, succeeded to the throne as Borommaracha IV.