Barbara Cartland was the one related to Princess Diana.

AI Overview

There are two prominent British writers related to Princess Diana: her own brother, Charles Spencer, and her step-grandmother, the late Dame Barbara Cartland. Charles Spencer, 9th Earl Spencer

Diana's younger brother, Charles Spencer, is a British peer, author, journalist, and broadcaster. He has written several highly acclaimed history books, including the Sunday Times bestsellers Blenheim: Battle for Europe and Killers of the King: The Men Who Dared to Execute Charles I. He also authored a memoir about his childhood and a book about his family's ancestral home, Althorp.

Dame Barbara Cartland

The prolific romance novelist Dame Barbara Cartland was Princess Diana's step-grandmother. Cartland's daughter, Raine McCorquodale, married Diana's father, the 8th Earl Spencer, in 1976, making Barbara Cartland Diana's step-grandmother. Cartland, known as the "Queen of Romance," wrote over 700 books and was a favorite author of the young Diana, who avidly read her novels.