I met a little girl yesterday named Riegel (pronounced like the word “regal”). I’ve always liked the name [name]Regan[/name] ([name]REE[/name]-gan) because it reminds me of the word “regal,” but for some reason, I’m not all that fond of Riegel itself.
It makes me think of [name]Rigel[/name], the brightest star in the constellation [name]Orion[/name]. For some reason I thought it was pronounced to rhyme with [name]Nigel[/name], but there’s a pronunciation for it on Forvo that matches the one you’ve described. I’m not quite sure which one is right. If they did name her after the star, perhaps they changed the spelling to clear up pronunciation issues. Very interesting!