| Honorific Prefix: | The Most Honourable |
| The Marchioness of Lothian | |
| Birth Name: | Lady Theresa Jane Fitzalan-Howard |
| Birth Date: | 24 January 1945 |
| Children: |
|
| Mother: | The Hon. Lavinia Strutt |
| Father: | Bernard Fitzalan-Howard, 16th Duke of Norfolk |
| Family: | Fitzalan-Howard family |
Theresa Jane Kerr, Marchioness of Lothian, Baroness Kerr of Monteviot, 16th Lady Herries of Terregles (née Fitzalan-Howard; born 24 January 1945) is a British aristocrat and philanthropist. Wife of the 13th Marquess of Lothian, in 2017, she inherited the Scottish title Lady Herries of Terregles from her sister, Mary, thus making her and her husband one of few couples who each hold a hereditary peerage in their own right.
Born Lady Jane Fitzalan-Howard on 24 January 1945, she is the youngest of four daughters of Bernard Fitzalan-Howard, 16th Duke of Norfolk and The Hon. Lavinia Strutt. She is a member of the ancient Fitzalan-Howard family, one of the most prominent noble families and most high-profile recusant families in England.[1] She grew up at the Fitzalan-Howard's family seat, Arundel Castle, in West Sussex. Her elder sisters were: Anne Cowdrey, 14th Lady Herries of Terregles, Mary Mumford, 15th Lady Herries of Terregles, and Lady Sarah Clutton.
On 7 June 1975, Lady Jane married Michael Kerr, Earl of Ancram, a Conservative Member of Parliament and son and heir of the 12th Marquess of Lothian.[2] Her husband succeeded to his father's peerages in 2004. They reside at Monteviot House.[3] Lord and Lady Lothian have three daughters and two grandchildren:[4]
In 2017, on the death of her elder sister, she inherited the ancient Scottish peerage, the Lordship of Herries of Terregles, which her father had inherited from his mother, Gwendolen, Duchess of Norfolk (and 12th Lady Herries of Terregles).[4] Her eldest surviving daughter, Lady Clare, is her heiress presumptive. Lady Lothian is a patron of the Right to Life Trust and a patroness of the Royal Caledonian Ball.[5] [6]