Complex sentence: After losing her husband in 1924, she wrote a biography of Mussolini originally published in 1925 in England under the title "The Life of Benito Mussolini" and the following year in Italy with the title "Dux".
Split into simpler sentences: After losing her husband in 1924, she wrote a biography of Mussolini. This first published in 1925 in Britain under the title "The Life of Benito Mussolini"; it was published the following year in Italy with the title "Dux".