Re: Trek II ~ Khan's Wife
It's also important to point out that it's never been specifically stated on screen that Khan's "beloved wife" even was McGivers. That line was cut from the film when they couldn't use Rhue, anyway.
That's correct; however, it's hard to imagine who else it could have been. There were other women of child-bearing age in Khan's party, but none were shown to have a romantic interest in him.
"I've sworn an oath to serve and protect the United Federation of Planets- an oath I will fulfill with my dying breath- for in my heart, I remain a creature of duty. I am Romulan." --Captain Sran, USS Naptown