This topic might have a better name.
Surely Quill's mother or Andrea Quill's mother is perfectly fine. "Miss Quill" or "Quill" is by far her most common name in Class.
Talk about it here.
The mother of Andra'ath and Orla'ath died in childbirth. Andra'ath's first memory was of feasting on her corpse, as was Quill custom. (TV: The Metaphysical Engine, or What Quill Did)