She died suddenly but peacefully according to The Guardian. She had written extensively about her ill health as a younger woman and how it was 'treated'.
I've read quite a number of her books. The contemporary ones are quirky. The historical ones are rich in detail and her characterisation is fabulous. It's a real loss
RIP Hilary, I love her work. Just relistening to Wolf Hall, coincidentally. Once again I’m struck by the richness of her descriptions that make you feel like you’re in the room.