Annabel vs Annabella - What's the difference?

As proper nouns the difference between annabel and annabella

is that annabel is while annabella is , a variant of annabel or annabelle.

(s)

* 1849 , :

I was a child and she was a child, / In this kingdom by the sea: / But we loved with a love that was more than love — / I and my Annabel Lee;