Neither the first nor the last person to be caught out by a homophone. Can you spot it?

 
St Mary Magdalene, Penley, Wrexham
(Click on an image for a larger version)
 
 
There were a large number of Polish graves in the churchyard. The informative noticeboard near the entrance was a sensible way of explaining the history of this interesting site.
 
 
Neither the first nor the last person to be caught out by a homophone. Can you spot it?
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