His main work, Letopiseţul Ţărâi Moldovei [de la Aron Vodă încoace] (The Chronicles of the land of Moldavia [from the rule of Aron Vodă]) was meant to extend Grigore Ureche's narrative,[1] covering events from 1594 to 1660.
Miron Costin was born as the son of a rich Moldavian boyar (Ion or Iancu).
His father had become a Polish magnate, which gave Miron the right to study at the Jesuit College in Bar, then at Kamienec Podolski.
Valued by the administration, he rose quickly, becoming Vornic in 1669 (i.e.: overseer of the Court, with several political responsibilities both inside the state and abroad).
He and his brother (Hatman Velicico) were believed to have tried to usurp the throne in Iaşi: both were executed in Roman.