San Francesco d'Assisi, or Saint Francis of Assisi, was an Italian friar and preacher born in 1181. He is known for his deep love of nature and animals, often depicted with birds and other creatures. He founded the Franciscan Order, which emphasizes poverty, humility, and a close relationship with God. Saint Francis is also recognized for his commitment to peace and social justice. He renounced his wealthy lifestyle to live among the poor and serve the marginalized. His life and teachings have inspired countless individuals and movements, making him one of the most venerated saints in Christianity.