I really enjoyed the video, although I didn’t make the same leap in logic that the reason Bosworth spent so much on his tombstone was simply that he ‘didn’t realize how much his estate was worth’.

If he spent one-sixth of his entire estate on a tombstone, and with it being so much research just to find out the details of that, we don’t know what his will did with the rest - he could have spent it all in equally eccentric ways just to piss everyone off, which apparently he was already quite good at while he was alive.