Gregory XVI was a pope who served from 1831 to 1846. However, there are several synonyms that can be used to refer to him, such as Bartolomeo Alberto Cappellari or Pope Gregory the Sixteenth. He was known for his reactionary views and conservative policies, particularly with regard to religious freedom and the spread of liberalism. His papacy was marked by several significant events, including the publication of Charles Darwin's "Origin of Species" and the establishment of the first Catholic diocese in Australia. Despite his conservative views, Gregory XVI was remembered as an intellectual and a patron of the arts and sciences.