The reputation of Lady Rachel Russell's letters sprang at first from her husband's political fame, but she was a letter-writer of high quality in her own right. Surviving letters probably represent only a fraction of those she wrote. Like many intelligent women of her time and rank, she used writing not only to communicate with relations and friends, but also privately, to shape her religious practice and her sense of her own life. She left diaries, essays, a catechism, and "Instructions for Children".
Shortly before 19 September 1637 Rachel Wriothesley (later LRR) was born.