Maybe not the kind you're looking for Emma but Jean Plaidy is one of my favourite historical novelists. I've read most of her books.
There is a 3 in 1 volume about Charles II on
Amazon.
<Added>Aha, maybe you're not actually looking for a book about Charles II - note to self read posts more carefully in future!!!
<Added>And of course there's Forever Amber by Kathleen Winsor which I read more then a dozen times.
Why are none of my suggestions high-brow ?????