Catherine of Sicily, also known as Catherine of Siena, was a prominent figure in the 14th century, recognized for her deep spirituality and commitment to the Catholic Church. Born in 1347, she became a tertiary of the Order of Saint Dominic and was known for her mystical experiences and writings, which emphasized the importance of personal devotion and reform within the Church. Catherine played a significant role in the political and religious landscape of her time, advocating for peace and unity among the Italian city-states. Her influence extended to the papacy, as she urged the Pope to return to Rome from Avignon, contributing to the eventual resolution of the Western Schism.