The south, or Lady Chapel, was added in 1931 and designed by Thomas Lyon, the architect of Sidney Sussex College Chapel.
1846–1865 – Thomas Lyon-Bowes, 12th Earl of Strathmore and Kinghorne
Lord Strathmore and Kinghorne married the Honourable Charlotte Maria Barrington, daughter of William Barrington, 6th Viscount Barrington, on 30 April 1850.
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Lyon-Bowes was the eldest surviving son of Thomas Lyon-Bowes, Lord Glamis, son of Thomas Bowes-Lyon, 11th Earl of Strathmore and Kinghorne.
Their daughter Maria Susannah Simpson married Thomas Liddell, 1st Baron Ravensworth (youngest son of Sir Henry Liddell 5th Bart, younger brother of Revd Henry George Liddell d. 1872)
Lyon | Thomas Jefferson | Thomas Edison | Thomas | Thomas Hardy | Thomas Mann | Thomas Aquinas | Clarence Thomas | Thomas Gainsborough | Dylan Thomas | Thomas Pynchon | St. Thomas | Saint Thomas, U.S. Virgin Islands | Thomas Carlyle | Thomas the Tank Engine | Thomas Moore | Thomas Cromwell | Thomas Becket | Thomas the Apostle | Thomas Merton | William Lyon Mackenzie King | Thomas Tallis | Thomas Paine | Roy Thomas | Thomas Telford | Thomas More | Thomas Wentworth, 1st Earl of Strafford | Ryan Thomas | C. Thomas Howell | Thomas Kean |
She married Thomas Lyon-Bowes, Lord Glamis, only son of Thomas Lyon-Bowes, 11th Earl of Strathmore and Kinghorne and Mary Elizabeth Louisa Rodney Carpenter, on 21 December 1820 at St. James's, Westminster, London, England.