It's one of those good ol' depressing tales of repression. My grandmother got pregnant as a teenager by a soldier during WWII and he...well, the official story is he died, but I think he really just abandoned her. Her parents arranged a trip to the country and passed the baby off as their own upon their return. A few years later my grandmother met a man abroad and decided to emigrate and get married, and it's a little sketchy whether her parents wouldn't let her take her daughter or if her new husband wouldn't let her bring her, but my grandmother crossed the ocean alone and the truth didn't come out until my great-grandmother was on her deathbed.