User blog comment:TheLinkster/Something for you to think about.../@comment-167456-20120812083744

Nope that doesn't happen in any version of the Arthurian myth I've read... except for Monty Python's Spamalot, which is hardly definitive.

Arthur gets married to Guinevere. In some versions, he gets married to three different women, all of whom are called Guinevere. The Lady of the Lake, on the other hand, is in a relationship with Merlin (and this is only some versions and some Ladies of the Lake, as there are sometimes more than one in each story).