Both the Renaissance and the so-called enlightenment were rivals to Catholic teaching and both were foundational in the Reformation.
The Renaissance (UK /rɨˈneɪsəns/, US /ˈrɛnɨsɑːns/, French pronunciation: [ʁənɛsɑ̃ːs], French: Renaissance, Original Italian: Rinascimento, from rinascere "to be reborn")[1] was a cultural movement that spanned the period roughly from the 14th to the 17th century, beginning in Italy in the Late Middle Ages and later spreading to the rest of Europe. Though availability of paper and the invention of metal movable type sped the dissemination of ideas from the later 15th century, the changes of the Renaissance were not uniformly experienced across Europe. As a cultural movement, it encompassed innovative flowering of Latin and vernacular literatures, beginning with the 14th-century resurgence of learning based on classical sources, which contemporaries credited to Petrarch, the development of linear perspective and other techniques of rendering a more natural reality in painting, and gradual but widespread educational reform. In politics the Renaissance contributed the development of the conventions of diplomacy, and in science an increased reliance on observation. Historians often argue this intellectual transformation was a bridge between the Middle Ages and the Modern era. Although the Renaissance saw revolutions in many intellectual pursuits, as well as social and political upheaval, it is perhaps best known for its artistic developments and the contributions of such polymaths as Leonardo da Vinci and Michelangelo, who inspired the term "Renaissance man".[2][3]
There is a consensus that the Renaissance began in Florence, Italy, in the 14th century.[4] Various theories have been proposed to account for its origins and characteristics, focusing on a variety of factors including the social and civic peculiarities of Florence at the time; its political structure; the patronage of its dominant family, the Medici;[5][6] and the migration of Greek scholars and texts to Italy following the Fall of Constantinople at the hands of the Ottoman Turks.[7][8][9]
The Renaissance has a long and complex historiography, and in line with general scepticism of discrete periodizations, there has been much debate among historians reacting to the 19th-century glorification of the "Renaissance" and individual culture heroes as "Renaissance men", questioning the usefulness of Renaissance as a term and as a historical delineation.
The new ideals of humanism, although more secular in some aspects, developed against a Christian backdrop, especially in the Northern Renaissance. Much, if not most, of the new art was commissioned by or in dedication to the Church.[16] However, the Renaissance had a profound effect on contemporary theology, particularly in the way people perceived the relationship between man and God.[16] Many of the period's foremost theologians were followers of the humanist method, including Erasmus, Zwingli, Thomas More, Martin Luther, and John Calvin.
The Renaissance began in times of religious turmoil. The late Middle Ages saw a period of political intrigue surrounding the Papacy, culminating in the Western Schism, in which three men simultaneously claimed to be true Bishop of Rome.[64] While the schism was resolved by the Council of Constance (1414), the 15th century saw a resulting reform movement known as Conciliarism, which sought to limit the pope's power. Although the papacy eventually emerged supreme in ecclesiastical matters by the Fifth Council of the Lateran (1511), it was dogged by continued accusations of corruption, most famously in the person of Pope Alexander VI, who was accused variously of simony, nepotism and fathering four illegitimate children whilst Pope, whom he married off to gain more power.[65]
Churchmen such as Erasmus and Luther proposed reform to the Church, often based on humanist textual criticism of the New Testament.[16] It was Luther who in October 1517 published the 95 Theses, challenging papal authority and criticizing its perceived corruption, particularly with regard to its sale of indulgences. The 95 Theses led to the Reformation, a break with the Roman Catholic Church that previously claimed hegemony in Western Europe. Humanism and the Renaissance therefore played a direct role in sparking the Reformation, as well as in many other contemporaneous religious debates and conflicts. (http://en.wikipedia.org/wiki/Renaissance#Religion)