What would Sandy's actual name be

With Sandy becoming marrigeable in 1.7 I wonder if we'll learn her actual name as Sandy is not her true name. She states in a dialogue that it's "good for buisness" but that she is not actually called Sandy.

Now it would be a bit odd if you marry someone that you don't even know the true name of, so I see it as highly likely we will learn it in 1.7

But what would it be? Something like Sandra or Samantha or something entirely different. What would you call Sandy?