Most commonly known as Charlotte Dacre, she was born Charlotte King in either 1771 or 1772. She published fiction, poetry, and lyrics, alternately using the names Charlotte King, Rosa Matilda, and Charlotte Dacre.
She married Nicholas Byrne, editor of the Morning Post, and her obituary in 1825 referred to her as Charlotte Byrne.
Today, she is known for her contributions to Gothic fiction, most notably with Zofloya.