What killed Alexander VII?

[Phidippides]

The image of the text below is from "A Collection of Scarce and Valuable Tracts" which was published in 1812 by a presumably Protestant author.  The publication contains only a short bit about Pope Alexander VII (d. 1667).  Based on the text, what do you think he died of?  I am guessing lung cancer was one thing (I'm not sure how prevalent smoking was back then, but I presume it would have been quite dangerous to do).  Any other cause of death you can infer from the information?

[scout1067]

Probably cancer.  He would not even have had to be a smoker.  I know about four people that have had lung cancer.  All were non-smokers.  In fact, one is a friend of mine who is laying in a hospital right now waiting to die.  He is 37, never smoked a day in his life and until last year when he was diagnosed he ran something like a 14:00 two mile.

[Phidippides]

I can see how even non-smokers may have had high rates of lung cancer for much of history because of the constant burning needed for heating and lighting.  Then again, lung cancer may be due to causes other than breathing in soot. 

All that said, Pope Alexander died in his 60s, so he probably lived longer than the average lifespan of his day.