I second the recommendation of Sharon Kay Penman. I enjoy her work immensely but in particular When Christ and His Saints Slept which was about “The Anarchy” was great. The rest of the books about Henry and Elenor were also great. And the Welsh princes trilogy. and the…no I'm kidding :). I'm not a historian so I can't tell if her books are always on pint about the facts of history but they do feel well researched and the big picture is at least more or less correct.And I've just finished what I expect is the penultimate book of Saxon Tales. Though it gets a bit repetitive after book 4 or 5 but the first couple of books in particular were great.