Φραγκίσκος, known as Saint Francis of Assisi, was an Italian religious leader born in 1181. He is best known for founding the Franciscan Order, which emphasized a life of poverty, humility, and service to others. Saint Francis is also recognized for his deep love of nature and animals, often referred to as the patron saint of ecology. He is celebrated for his commitment to peace and his efforts to promote interfaith dialogue, particularly during the Crusades. Saint Francis's feast day is observed on October 4th, and he is venerated in various Christian denominations, including the Catholic Church.