Historic Royal Blind Item #1: Biblical Temptation

This smoldering young hunk has just inherited a major kingdom and is searching for the perfect queen. Courtiers have a French princess in mind who would be perfect. Hunk has cast his net closer to home. A little too close. Sources say that Hunk wants to marry his late brother's wife. Of course this is not going to fly in Rome! His advisors warn him this idea will bite him in the ass, but what Hunk wants, Hunk gets. He is king after all.

Do you know who this historical blind item applies to? Sound off in the comments!