Portrait of Elizabeth I, by Marcus Gheeraerts the Younger. ©Trinity College, University of Cambridge, supplied by the Public Catalogue Foundation

Portrait of Margaret Gerard, Lady Legh, attributed to Marcus Gheeraerts the Younger. Accepted in lieu of inheritance tax by HM Government and allocated to the National Trust for display at Lyme Park, 2011. ©National Trust Collections

Portrait of Blanche Parry, possibly by Marcus Gheeraerts the Younger, at Tredegar House, Newport. ©National Trust Collections, supplied by the Public Catalogue Foundation

Portrait of Elizabeth Vernon, Countess of Southampton, by school of Marcus Gheeraerts the Younger. ©Glasgow Museums, supplied by the Public Catalogue Foundation

Portrait possibly of Anne Keighley, Mrs William Cavendish, by Marcus Gheeraerts the Younger, at Hardwick Hall, Derbyshire. ©National Trust Collections, supplied by the Public Catalogue Foundation

Portrait of an unknown lady, aged 31, holding a glove and fan, in the style of Marcus Gheeraerts the Younger, at Nostell Priory. ©National Trust Collections, supplied by the Public Catalogue Foundation

Portrait of an unknown pregnant lady, attributed to Marcus Gheeraerts the Younger. Accepted by HM Government in lieu of inheritance tax and allocated to Tate, 1999. ©Tate, supplied by the Public Catalogue Foundation