Complex sentence: He occupied the throne for only seventeen days, his only notable papal act being the timely excommunication of Matteo Orsini, and died, before consecration, of wear and age, on November 10,1241, and was buried in St Peter's.
Split into simpler sentences: He occupied the throne for only seventeen days, his only notable papal act being the timely excommunication of Matteo Orsini. He died before consecration of wear and age on 10 November 1241 and was buried in St Peter's.