,(UNDERGOING MAJOR EDITING! Sorry!)
Muireann was born on a May 12. The first sign of magic she showed was levitating a heather bloom from a table beside her crib to show her mother. Her brother adored her and would insist on watching over her. Muirrean would later joke that she was more his baby than anyone's.
Her first childhood friend was a Muggleborn witch named Alanna Ridgebit.
Muireann went to Hogwarts and was accepted into Ravenclaw under Head of House Mnemosyne McBride.
A water elemental, she was the maternal grandmother of Severus Donovan Snape, the mother of Eileen Valora Prince. She and her future husband, Roderick, worked as a team from the time they were assigned together in the Auror Office.
"There are good ships and there are wood ships, the ships that sail the sea. But the best ships are friendships, and may they always be."
“I, Roderick Nolan Prince, take you, Muireann Rionach Barratt, to be my wedded wife, to have and to hold, from this day forward, for better, for worse, for richer, for poorer, in sickness and in health, to love and to cherish, to honor and to protect, till death do us part and beyond, according to God's holy ordinance; and thereto I pledge myself to you and you alone. I pledge to always treat you like the queen you’re named for, the queen you are to me.”
“I, Muirrean Rionach Barratt, take you, Roderick Nolan Prince, to be my wedded husband, to have and to hold,, from this day forward, for better, for worse, for richer, for poorer, in sickness and in health, to love and to cherish, till death do us part and beyond, according to God's holy ordinance; and thereto I pledge myself to you and you alone. You’re not only a Prince in name; you have the heart of one. "- Roderick and Muirrean's wedding vows
"The day before All Hallows Eve, your seanmhathair d-died for a fool who loves her more than life itself, but who didn’t think himself worthy of her sacrifice until afterward. . .”—Roderick to Severus, telling him about his grandmother