Could you please clarify who you are referring to? Perhaps you're thinking of:
* Molly Weasley: Harry's mother figure and a strong matriarch in the story. She's a key figure throughout the series, and her role is crucial in the final battle.
* Petunia Dursley: Harry's aunt who raised him, though poorly, and who has a complex relationship with magic. She plays a small but significant role in the series.
Let me know if you have any other details about the character you're asking about, and I'll try to help you.