Complex sentence: Gore left instructions for his body to be cremated, a practice seen as unChristian by some at the time, provoking the Anglo-Catholic Lord Halifax to exclaim, a little late, I could shake the life out of him with my own hands.
Split into simpler sentences: Gore left instructions for his body to be cremated, a practice seen as unChristian by some at the time. His wishes provoked the Anglo-Catholic Lord Halifax to exclaim, a little late, I could shake the life out of him with my own hands.