G.R.R. Martin refers to this as the original Game of Thrones, and you can see why. The same types of characters populate it, to a large degree — except I’m not sure I found any of Druon’s portrayals to have many redeeming features, whereas I’ve liked a couple of characters in what I’ve read so far of Martin’s epic. This is, of course, not a work of fantasy, but based on real history; how closely, I’m not sure, as my knowledge of the period is mostly based on British politics, and this largely takes place in France. It offers a convincing world, anyway: just the way you would want the period to be, with torture and curses, weak princes and calculating counsellors.
I have seen quite a few fairly negative reviews of this, which I think might come from people expecting something more fantastical based on Martin’s comment, and possibly also from people who can’t stand the translation (it’s very workmanlike and functional, I think). But I quite enjoyed it: I don’t know if I’ll pick up the rest of the series, simply because there are so many books and so little time, but I enjoy reading it. If there’s anything lacking, for me it’s more sympathetic characters, or at least more of an inner life beyond who they want to sleep with.