His first wife, Frances Knyvet, had died in 1605. Letters of a family business agent Thomas Screven to Roger Manners, 5th Earl of Rutland describe their meeting, betrothal, and marriage negotiations in London.
[2] In 1615 the Countess of Rutland consulted the physician and astrologer Richard Napier, and in December 1616, Henry Atkins, about the health of her second son, Francis, the "little lord", the Baron de Ros or Roos.
[9] The story was developed into a ballad published in 1619, titled Damnable Practises of three Lincolne-shire Witches, set to the tune "Ladies Fall".
[10] In Ben Jonson's masque The Gypsies Metamorphosed, performed at Burley-on-the-Hill, Belvoir, and Windsor Castle in August and September 1621, an actor recited her "fortune".
[17] This three-quarter-length version (and the portrait at Belvoir) are now thought to depict this Cecily Tufton Manners, another sitter of the same family, who became Countess of Rutland in 1612.