Frederick, and friendlier nickname Fred, seemed almost to have disappeared, leaving just the memory of Freds past such as Astaire, Mr. Rogers and Flintstone. But today's parents are beginning to recognize it as a strong classic and one of the top royal baby boy names.

Eva is a simple, classic Hebrew name for girls that recently slipped out of the US Top 100 for the first time in more than a decade. Pronounced either like her more popular sister Ava or less popular sister Eve, Eva is one of the elite group of girl names that mean life.

A name with plenty of grandeur, but a playful nickname, Wolfgang blends sophistication, wildness, and gothic imagery. While it may feel surprising in this century, it does have an allure for those who want a name associated with dark academia, Halloween, history, intellect, wolves, and art.

Marguerite is a classic French name with a remnant of old-fashioned Gallic charm; and is also a variety of daisy. Chic again in Paris, it's definitely ripe for revival here.

One of the most familiar German names, with an upright Prussian image. Friedrich might just have been out for long enough to start coming back in.