 Chairachathirat "marched against Chiang Kran" with the aid of 120 Portuguese traders in Ayutthaya, and drove the Burmese back.The Portuguese were then allowed to build a church near the Takhian Canal to practice their religion.Chairacha appointed his brother Prince Tianracha (later Maha Chakkrapat) as the "Uparaja" but did not granted him the title of King of Sukhothai as Chairacha tried to unite the two kingdoms by reducing the power of Sukhothai nobles.