Friar

Friars belong to the mendicant orders, most prominently the Franciscans, Dominicans, Carmelites and Augustinians, founded chiefly in the thirteenth century as a deliberate alternative to the older monastic pattern of stability, the vow binding a monk to remain in one monastery for life. Friars instead take vows of poverty, chastity and obedience within an order organized around mobility and active ministry, traditionally supporting themselves through begging, hence mendicant, from the Latin for begging, rather than through the landed estates and agricultural self-sufficiency that had sustained older monasteries, and directing their ministry outward toward the growing medieval cities and their populations rather than toward a settled, enclosed community life.

The distinction between a friar and a monk remains a genuine one in Catholic religious life today, though popular usage often blurs it: a friar belongs to a province of his order spanning many houses, friaries, and can be reassigned among them by his superiors in a way a stability-bound monk cannot, and his ministry, preaching, teaching, missionary work, university teaching in the case of the Dominicans and Franciscans especially, is oriented toward active engagement with the wider Church and world rather than the primarily contemplative, enclosed life monastic stability was designed to support.

Francis of Assisi's early thirteenth-century movement, beginning around 1209 with a small band of followers committed to radical poverty and itinerant preaching, and Dominic de Guzman's roughly contemporary founding of the Order of Preachers, focused specifically on combating heresy through educated preaching, arose from similar concerns about a Church some reformers saw as too closely tied to landed wealth and insufficiently engaged with a rapidly urbanizing, increasingly literate medieval population that older monasticism reached poorly. Both orders received papal approval within the same decade, Franciscans in 1209 to 1210 and Dominicans in 1216, and both split, in the Franciscan case repeatedly and often contentiously, over how strictly the founder's original vision of poverty should be maintained as the orders grew rapidly and inevitably accumulated institutional needs, a tension the Franciscan movement in particular never fully resolved, producing distinct branches, Observant, Conventual and Capuchin among them, that persist today.

Mendicant friars became closely associated with the medieval universities, particularly Paris and Oxford, where Dominican and Franciscan scholars, Thomas Aquinas and Bonaventure foremost among them, held influential teaching positions and produced theological work that shaped Catholic thought for centuries, an intellectual role that sat alongside, and sometimes in tension with, the orders' original emphasis on simplicity and popular preaching to the poor.