Baramaraja (), of mixed Siamese MonâÂÂChinese heritage, became the ninth monarch of XiÃÂn at Ayodhya in 1310 following the death of his elder brother, Dhammaraja. His reign, extending from 1310 to 1344, was characterized by the revival of expansionist military activity, in continuity with the policies of his father-in-law, Suvarnaraja. In 1313, only a few years after his accession, Xian launched a protracted two-year campaign of invasion against Champa. This enterprise ultimately proved unsuccessful, as Champa later received military support from the emperor of ÃÂại Viá»Ât.<sup></sup>
BaromarÃÂja was the second son of a Chinese princess who married a mixed MonâÂÂChinese Dharmatriloka, king of Si Satchanalai. His principal consort was Sunandhadevë, the younger daughter of the 7th Ayodhya monarch Suvarnaraja. Upon his death in 1344, he was succeeded by his only son, Varashreá¹£á¹ÂhakumÃÂra (), who ascended the throne as Uthong V or Ramathibodi I, subsequently becoming the first king of the Ayutthaya Kingdom in 1351.
During the reign of Baromaraja, tributary missions were dispatched to the Yuan dynasty in 1314, 1319, and 1323. Subsequent embassies were recorded under the designations XiÃÂnluó hú () and XiÃÂnluó ), appellations that referred to the polity later identified as the Ayutthaya Kingdom. In the period between 1334 and 1336, during the invasion of Ai Lao (later known as Sip Song Chau Tai) by the Trần dynasty, XiÃÂn, together with other regional polities, rendered tribute to ÃÂại Viá»Ât, as recorded in the Khâm ÃÂá»Ânh Viá»Ât sá» Thông giám cðáng mục. Trade relations with China, Kula, Vilanda, Japan, India, and others, were recorded.