Konstanty Korniakt was a merchant of Greek descent, active throughout Central and Eastern Europe; a leaseholder of royal tolls who collected customs duty on behalf of the king. During his lifetime he was the wealthiest man in Lviv and even owned numerous villages. He was a wholesale merchant and founder of the Korniakt family dynasty.
- Occupation
- merchant
- Position held
- king's secretary at the Polish court
- Citizenship
- Polish–Lithuanian Commonwealth
- Born
- 1517
- Died
- August 1, 1603
