 His Pyatigorsky detachments became the major military force of the Polish-Lithuanian Commonwealth in centuries to come.In 1561, at the request of the Lithuanian prince, he went back to fortifying Khortytsia.In 1563 he was involved in Moldavian affairs, perhaps hoping to obtain the throne of Moldavia, but was defeated by the Turks, taken prisoner, and after the refusal of Ivan the Terrible to free his relative, he was tortured to death in Constantinople.