Bernard of Clairvaux was a prominent French monk and theologian born in 1090. He founded the Cistercian order, which emphasized a return to a simpler, more austere monastic life. Bernard became known for his deep spirituality and his ability to inspire others, attracting many followers to his cause. He played a significant role in the religious and political life of his time, advising kings and popes. Throughout his life, Bernard wrote extensively, producing influential works on theology and mysticism. His sermons and letters contributed to the development of medieval spirituality, and he is often remembered for his devotion to the Virgin Mary. Bernard was canonized as a saint in 1174 and is celebrated for his lasting impact on the Christian faith.