Heh, the Geerling family is far from royal, it's just something a lot of families in Europe seemed to do (heraldry), and the idea is pretty neat—try to add symbols to your family crest that you want your family to try to strive for (like honor, strength, love, peace, etc.).

I think we even did a thing in one of my art classes on heraldry once, and the idea was to try to figure out what symbols you would choose for your own personal crest, based on what kind of things we'd see in historical ones.