"It's as though she walks under his umbrella. He puts his arm around her and poof! she's a citizen," says Linda Kerber, a professor who teaches gender and legal history at the University of Iowa. "She has had the good sense to come out from these monarchies and opt for an American. She's a sensible woman, we adore her.""Whereas an American-born woman who marries a foreign man, oh my goodness, she is disloyal," Kerber said.