Name the "Three Sisters"

I would like some assistance naming three new characters.
So, I was at the hairdresser while my son had his hair cut. I decided to make use of the time by writing. I was staring blankly across the room day dreaming, as is what I tend to do during these times.
I noticed all the ladies were dressed in black pants and loose baggy black tops. They carried tools in holsters low on their hips. I thought, 'these girls are a team in black uniform'. I noticed three of them were wearing leather boots; two wore knee high boots, one pair dark brown and the other black and the third wore ankle high brown with brass buckles.
'They could be mercenaries', I thought.
Of course they are mercenaries and they are sisters as well. The oldest is twenty-sevenish with dark hair. She is more cautious and a sorceress. The second oldest has a tottoo the full of her upper left arm. She is more adventurous, if you will. You might say more reckless. She has black hair and excells with a rapier. The third cannot be matched with a bow.
Each are very skilled with sword, bow and knife, however each has their favourite.

The trouble is they won't tell me their names. Collectively they are the Three Sisters. Individually I haven't the foggiest notion.
So I am asking for suggestions if you will please.
Thanks,
D.E.