The Siamese army under Maha Chakkraphat soon met the advance column commanded by the Viceroy of Prome, and the two armies engaged in battle. The commanders of the two forces engaged in single elephant-combat, as was the custom of the time.[6] But Maha Chakkraphat's elephant panicked and gave flight, charging away from the enemy; the Viceroy swiftly gave chase. Fearing for the life of her husband, Queen Sri Suriyothai charged ahead to put her elephant between the King and the Viceroy, thereby blocking his pursuit.[5][7] The Viceroy then engaged the Queen in single combat, fatally cleaving her from shoulder to heart with his spear, also wounding her daughter—both mother and child met their deaths on the back of the same elephant.[7][8][9] It was said that the Viceroy did not know he was fighting a woman until his blow struck—as she fell dying her helmet came off, exposing her long hair. The Burmese chronicles however do not mention any instance of single combat (on elephant-back or otherwise) by the viceroy of Prome.[note 1]
Prince Ramesuan and Prince Mahin then urged their elephants forward to fight the Viceroy, drove him and his remaining forces from the field, then carried the bodies of their mother and sister back to Ayutthaya. The Siamese king meanwhile rallied his army, and retreated in good order back towards the capital.[5][7]