Mentmore Towers / Jacobethan / Renaissance Revival 

Before reinstating your claims about Mentmore being based on a design by Serlio, please find a reliable source to back it up. The Renaissance Revival article is a bit of a mess because the term is so all-encompassing (in some poor interpretations) as to be almost meaningless (though as the majority of the examples on that article's page show, it is generally accepted as being a revival of specifically Italian palazzo type models, rather than applying to the revival of any style that was in use anywhere in Europe during any part of the Renaissance). Jacobethan is more specific, is supported by the government's own list description for Mentmore (as shown in the source I have cited), and is more correct in the context of Mentmore than the vague "Renaissance Revival".