Not much is known about Grace's past. She used to be a mage at Starkhaven before the Circle there was burned down. During that time, she had a relationship with Decimus. Grace felt like a prisoner in the Circle, and she credited Decimus with giving her and the other apostates the courage to fight the templars.
Grace is involved in the quest Act of Mercy.
Ser Thrask will send Hawke a letter asking them to come to a remote cave along the Wounded Coast. When Hawke arrives, Thrask will tell them that a group of apostates who escaped from Starkhaven are hiding inside. Hawke must get them to surrender or else Ser Karras will slaughter them. After entering the cave and eliminating the early threats, Hawke will find the apostates at the back of the cave. The group is lead by Decimus. He has taken up blood magic and is ready to fight to the death for the mages' freedom. Decimus quickly presumes Hawke to be a templar and attacks, despite Grace pointing out that Hawke clearly doesn't appear to be a templar. Hawke kills Decimus and the few mages that fight by his side.
Regardless of whether the templars were tricked or killed by Hawke, Grace can be encountered again at The Gallows in the courtyard and bitterly states she was caught after three years on the run, and that Decimus was right, they should've died before submitting to templars.pride abomination however despite her new power, she is slain by Hawke and their companions.
- (After Hawke convinces the templars that the mages are dead) "I didn't think you could do it. Truly you must be able to charm a miser out of his last coin."
- Grace: "I did not think any of us would leave those caverns alive."
- Hawke: "It won't be an easy path, trying to live free as a mage."
- Grace: "But it will be my path."