James studied theology with Saint John of Capistrano. Ordained in 1420, James began a preaching career that took him all over Italy and through 13 Central and Eastern European countries. This extremely popular preacher converted many people–250,000 at one estimate–and helped spread devotion to the Holy Name of Jesus. His sermons prompted numerous Catholics to reform their lives, and many men joined the Franciscans under his influence.
With John of Capistrano, Albert of Sarteano, and Bernardine of Siena, James is considered one of the “four pillars” of the Observant movement among the Franciscans. These friars became known especially for their preaching.
To combat extremely high interest rates, James established montes pietatis—literally, mountains of charity—nonprofit credit organizations that lent money on pawned objects at very low rates.
Not everyone was happy with the work James did. Twice assassins lost their nerve when they came face to face with him. James died in 1476, and was canonized in 1726.