The Wheel of Time does not have a character named Rose, but the last queen of Manetheren was called Ellisande (Rose of the Sun) by her people.
Nice. It’s a little iffy as far as counting towards the Rose bouquet goes, but it works.
I suppose Rose is just too real a name for the setting. It’s not like you’re likely to run into people named Bob or Peter in the Westlands. Then again, we do have Mat(rim) Cauthon.