Catherine Carey was born in early 1524 at the precise midpoint of her mother Mary Boleyn's affair with Henry VIII, which is either a coincidence or the most consequential piece of timing in her entire life, depending on which historians you read and how carefully you look at her portraits.
Mary Boleyn was born around 1499 or 1500, the eldest daughter of Thomas Boleyn and Elizabeth Howard, at the family estate of Blickling Hall in Norfolk, and history has spent five hundred years treating her as a footnote in her own sister's story.
Henry VIII's solution was to give her son to her sister. She had been his mistress. Her husband died of the sweating sickness on the twenty-second of June 1528 and left her destitute with two small children, and that was what Henry was going to do about it.
Elizabeth "Bessie" Blount was born around 1498 or 1500 at Kinlet in Shropshire, the daughter of Sir John Blount of Kinlet and Katherine Peshall, the eldest daughter of a well-connected gentry family in the Welsh Marches, and she arrived at the court of Henry VIII in 1512 or 1513 at approximately twelve years old as a maid of honour to Catherine of Aragon.
Lettice Knollys, the eldest daughter of Francis Knollys and Catherine Carey, was born on the 8th of November 1543 at Rotherfield Greys in Oxfordshire, and she inherited from her mother's side of the family two things that would define the entire shape of her life. Tudor red hair, and a connection to the English crown that everyone could see and nobody was permitted to discuss.