Not easily unfortunately. I haven't come up with a way to do it without her cooperation or with any reason why she'd cooperate. The folks faking her death need her to like them later on, and the events they're orchestrating will require her father, uncle, and grandfather to die. Two brothers are already dead, but canon suggests that she didn't know them well.

She's sixteen, sheltered, and more than a little spoiled. She's the openly acknowledged illegitimate daughter of one of the country's wealthiest men. She doesn't live with him, but he pays for everything. He's a terrible person, but he's always adored her.