Catherine Carey Francis and Lady Knollys produced a number of offspring who survived to maturity. Of the children listed, only the last, Dudley, is known to have died in infancy: The possibility that Catherine, and perhaps her brother Henry, were illegitimate children of Henry VIII, appears in many works of fiction, including Philippa Gregory's "The Other Boleyn Girl". Catherine Carey is also a character in Gregory's "The Boleyn Inheritance", where she is sent to the royal court during the time of Queens Anne of Cleves and Catherine Howard, and in "The Virgin's Lover", where, as the mother of the seventeen-year-old Lettice Knollys,
Catherine of Siena court and writing letters to persuade others. For many years she had accustomed herself to a rigorous abstinence. She received the Holy Eucharist almost daily. This extreme fasting appeared unhealthy in the eyes of the clergy and her own sisterhood. Her confessor, Blessed Raymond, ordered her to eat properly. But Catherine claimed that she was unable to, describing her inability to eat as an "infermità" (illness). From the beginning of 1380, Catherine could neither eat nor swallow water. On February 26 she lost the use of her legs. Catherine died in Rome, on 29 April 1380, at the age of