Drohobych was born in the city of Drohobych in the Kingdom of Poland, to a townsman Michael Donat Kotermak.

In 1468 or early 1469 Drohobych entered the Jagiellonian University in Kraków. Two years later he received his bachelor's degree and in 1473 his master's. He taught during the summer and participated in scientific discussions on Saturdays and Sundays. After he gained