[qwytw]

You could check actual actuarial tables and population wide statistics from the 1700s and 1800s directly. You'll see that young people were many times more likely to die in their 20s and 30s than they are now. e.g. as late as mid 1800s almost ~30% of those who reached 20 died before they were 50. The proportion is about 10x lower these days.

> Assuming that chatgpt can read wikipedia pages correctly

I gave it a pdf of the Wikipedia page, it wrote a Python script and calculated that it was:

37 years all causes and 46 only natural.

(https://chatgpt.com/share/679aafa9-7ac8-800a-8f4c-3ba67f4502...)

Of course I'm too lazy to check if it's correct.

However I don't think this data is necessarily at all that meaningful because it only includes who lived long enough to become king.

e.g. Louis XIV died at 76, his first son died at 49, next son who reached adulthood died at 16. His first grandson died when he was 29. Finally he was succeeded by the third son of his grandson (first to reach adulthood). So naturally the "sample" overrepresents those who had an average than longer lifespan.