Recollections of the Last Four Popes and of Rome in Their Times is a book by Cardinal Nicholas Wiseman that offers a personal account of his experiences and observations of the pontificates of Pius VII, Leo XII, Pius VIII, and Gregory XVI. The book details the social, political, and cultural landscape of Rome during their eras, providing unique insights into the Vatican and the challenges facing the Catholic Church in the mid-19th century. It is considered a significant historical resource for historians, theologians, and those interested in church history.