| Anne St John | |
| Father: | John St John |
| Relatives: | William Dormer (grandfather) Oliver St John (grandfather) Oliver St John (uncle) |
| Children: | 1+ |
Anne St John (died June 1638) was an English aristocrat and courtier.
She was a daughter of John St John, 2nd Baron St John of Bletso and Katherine Dormer, a daughter of William Dormer of Wing, Buckinghamshire.She married William Howard, 3rd Baron Howard of Effingham in 1597, and was known as "Lady Effingham". He was a son of Charles Howard, 1st Earl of Nottingham and Catherine Carey.
Her daughter's birth in January 1603 was unexpected, according to John Chamberlain.[1] Elizabeth Howard (1603–1671) married Lord Mordaunt in 1621.[2]
In January 1605 she performed in the court masque, The Masque of Blackness as Psychrote. She was probably a stand-in for her mother-in-law, Margaret Howard, Countess of Nottingham, who was unwell.[3]
Her husband died in 1615. Her properties included Donnington Castle, to which the goldsmith and financier Peter Vanlore also had a claim.[4]
Lady Anne Clifford, a relation, mentions visiting her at the home of Elizabeth Darcy, Lady Lumley on 4 January 1616.[5] There was discussion in 1619 that Lady Effingham might marry Lionel Cranfield, 1st Earl of Middlesex.[6]
Anne, Lady Effingham died in June 1638 and was buried in Westminster Abbey.