On the morning after the destruction of the city, 21 gibbets were erected on a neighbouring hill called Beydao, which were surrounded by a strong guard of cavalry, and on which the queen, with her children and attendants, to the number in all of 140 persons, were all hung up by the feet.  The king of Martavan, with 50 men of the highest quality, were flung into the sea with stones about their necks.  At this barbarous spectacle, the army of the Birmans mutinied, and for some time the king was in imminent danger.  Leaving a sufficient number of people to rebuild the ruined city, the Birman king returned to Pegu with the rest of his army, accompanied by Juan Cayero, and his 700 Portuguese.  Four Portuguese remained at Martavan, among whom was Juan Falcam; who, instead of assisting Fernan Mendez Pinta, sent by Pedro de Faria, the commander of Malacca, to confirm the peace which subsisted with the late king of Martavan, accused him to the governor of the town as an enemy to the king of the Birmans.  On this false accusation, the governor seized the vessel commanded by Pinto, in which were goods to the value of 100,000 ducats, killed the master and some others, and sent the rest prisoners to Pegu.  This false dealing was not new in Falcam, who had deserted from the late unfortunate king of Martavan, after having received many benefits from him.

Instead of being allowed to enjoy the fruits of his victories in peace, the king of the Birmans was obliged to engage in a new war with the king of Siam, who endeavoured to recover the kingdom of Tangu, which had been wrested from him.  For this purpose, in March 1546, he embarked with 900,000 men in 12,000 vessels, on the river Ansedaa, out of which he passed in the month of April into the river Pichau Malacoa, and invested the city of Prom.  The king of this territory was recently dead, leaving his successor, only thirteen years of age, who was married to a daughter of the king of Ava, from whom he looked for the assistance of 60,000 men.  For this reason, the king of Siam pressed the siege, that he might gain the city before the arrival of the expected succours.  After six days, the queen of Prom, who administered the government, offered to become tributary if he would grant a peace; but the king insisted that she should put herself into his hands with all her treasure.  She refused these degrading terms, knowing his perfidious character, and resolved to defend the city to the last extremity.  The king of Siam accordingly gave several assaults, in all of which he was repulsed, and in a short time, lost above 80,000 of his men, partly by the sword, and partly by a pestilential disease, which raged in his army, 500 Portuguese who were in his service perishing among the rest.