Of peasant origin, he was born in Husinec, Bohemia (from which his name is derived). He studied theology at the Univ. of Prague, was ordained a priest c.1400, and in 1402 was appointed preacher of the Bethlehem Chapel, a foundation dedicated to preaching in the Czech language. He early came under the influence of the writings of John Wyclif, and though he did not fully espouse Wyclif's doctrine, he opposed its condemnation (1403) by the Univ. of Prague and translated Wyclif's Triologus into Czech.