https://www.bbc.co.uk/news/articles/cd6jv5jdp6zo
slightly outside of our 'strict' time band but hopefully of interest
Fascinating that they seem to have been plastered over and so preserved.
Mind you I would never want to live in a listed building, the complications are myriad. My sister had one for a while and swore that if she didn't keep swatting them away an infestation of dendrochronologists would have built to a worse problem than the death watch beetles! :-\ (Apparently there were old estate records of where all the timbers had come from)