Twentieth-century, South African-born author who is most famous for her biographies. She wrote about the lives of author Emma Orczy and British Special Agent Krystyna Skarbek, among others.
She penned a biography of Edwina, Countess Mountbatten of Burma.
She married Baron Renaud Marie de la Minaudiere, who was twenty-two years her senior, but left him when she discovered his long-term mistress. Later, she met Captain John Rayner, with whom she enjoyed a thirty-two-year marriage.
She was an acquaintance of renowned Painter Pablo Picasso.