I find
Isabelle very beautiful. I prefer
Isabel and
Isobel, but
Isabelle is also nice.
Here's a combo for you:
Isabelle Plaisance. Medieval as heck(she was a queen of Jerusalem I think) AND it means "pleasant". ...or, so I assume.
Continuing on in that vein:
Isabelle AmityIsabelle MelisandeIsabelle SibyllaIsabelle Alix,
Isabelle AliceIsabelle PhilippaIsabelle Lucia,
Isabelle LucyIsabelle ConstanceIsabelle Matilda,
Isabelle MaudeIsabelle Marie - boring, yes. But it works so well! Maybe
Isabelle Marie Louise or
Isabelle Marie Therese? So pretty.