Complex sentence: Following the death of his wife in 1998, Manchester suffered two strokes, and announced, to the disappointment of many of his readers, that he would not be able to complete the previously planned third volume of his three part biography of Churchill.
Split into simpler sentences: Following the death of his wife in 1998, Manchester suffered two strokes. He announced, to the disappointment of many of his readers, that he would not be able to complete the previously planned third volume of his three part-biography of Churchill.