I'm trying to decide on a name for a character in a story I'm writing, and could use some input.
She's named for a beloved family member, Kate, who died shortly before she was born. There's also Irish ancestry. Basically, I'm looking for the right Irish, or Anglicized Irish, form of Katherine. On top of that, it shouldn't sound too much like Kate, so no Caitlin etc; and it should be easy to spell and pronounce for the average (non name geek) English speaker. Middle name will be Sage.
For anyone who wants a character sketch to help them decide: Pale skin with lots of freckles, strawberry blonde hair, bright blue eyes. She's moody, intense, stubborn, temperamental. Throws herself into everything 110% - until she gets bored, and finds another obsession. Tends to react without thinking first. An only daughter, and Daddy's girl. (He calls her Kitten.) Has three younger brothers, who she likes to complain about and call pests, but would defend wholeheartedly against any outsiders.
Catriona Sage (nn Cat)
Katrina Sage (nn Kat)
Kathleen Sage (nn Kathy)
Did I miss any? Which do you prefer (and why)?