On the 'Tremenhere Menhir' page you've added a folklore post that says,
"The coat of arms of the Tremenhere family show three standing stones. The meaning of the name in Cornish being Tre= farm or home and Menhir= stone. Why they should put three standing stones I am not sure."
It got me thinking, because 'tre' means 3 in Welsh. Thought you might be interested.
Here's the link for the benefit of anyone on the Head Heritage interface:
http://www.themodernantiquarian.com/site/687
K x