His reign was one of the most successful in Moldavia's history, but also saw the very first confrontation with the Ottoman Turks at Cetatea Albă in 1420, and later even a conflict with the Poles.
Tema valitsemine oli üks kõige edukamaid Moldova ajaloos, kuid nägi aastal 1420 ka esimest vastasseisu osmanitürklastega Cetatea Albăs ja hiljem isegi konflikti poolakatega.