Religion also flourished in Catholic Europe around 1700, but there were important differences from Protestant practice. First, the visual contrast was striking; baroque art still lavished rich and emotionally exhilarating figures and images on Catholic churches, whereas most Protestant churches had removed their art during the Reformation. Moreover, people in Catholic Europe on the whole participated more actively in formal worship than did Protestants. More than 95 percent of the population probably attended church for Easter communion, the climax of the religious year.

The tremendous popular strength of religion in Catholic countries can in part be explained by the church’s integral role in community life and popular culture. Thus, although Catholics reluctantly confessed their sins to priests, they enthusiastically came together in religious festivals to celebrate the passage of the liturgical year. In addition to the great processional days — such as Palm Sunday, the joyful re-enactment of Jesus’s triumphal entry into Jerusalem — each parish had its own saints’ days, processions, and pilgrimages. Led by its priest, a congregation might march around the village or across the countryside to a local shrine. Millions of Catholic men and women also joined religious associations, known as confraternities, where they participated in prayer and religious services and collected funds for poor relief and members’ funerals. The Reformation had largely eliminated such activities in Protestant areas.

Catholicism had its own version of the Pietist revivals that shook Protestant Europe. Jansenism has been described by one historian as the “illegitimate off-spring of the Protestant Reformation and the Catholic Counter-Reformation.”26 It originated with Cornelius Jansen (1585–1638), bishop of Ypres in the Spanish Netherlands, who called for a return to the austere early Christianity of Saint Augustine. In contrast to the worldly Jesuits, Jansen emphasized the heavy weight of original sin and accepted the doctrine of predestination. Although outlawed by papal and royal edicts as Calvinist heresy, Jansenism attracted Catholic followers eager for religious renewal, particularly among the French. Many members of France’s urban elite, especially judicial nobles and some parish priests, became known for their Jansenist piety and spiritual devotion. Such stern religious values encouraged the judiciary’s increasing opposition to the French monarchy in the second half of the eighteenth century.

Among the urban poor, a different strain of Jansenism took hold. Prayer meetings brought men and women together in ecstatic worship, and some participants fell into convulsions and spoke in tongues. The police of Paris posted spies to report on such gatherings and conducted mass raids and arrests.