Susanna Leveson-Gower, Marchioness of Stafford

Susanna Leveson-Gower, Marchioness of Stafford (née Lady Susanna Stewart) (1742–1805), styled Lady Susanna Stewart from 1742 to 1768, Countess Gower until 1786, Marchioness of Stafford until 1803 and Dowager Marchioness of Stafford until her death in 1805, was a British noblewoman, who in 1768 became the wife of Granville Leveson-Gower, 1st Marquess of Stafford and a member of the Leveson-Gower family.

Lady Susanna was born in 1742 in Scotland, the eldest daughter of Alexander Stewart, 6th Earl of Galloway by his second wife, the former Lady Catherine Cochrane, herself the youngest daughter of the 4th Earl of Dundonald. She had an older half-sister, Lady Mary Stewart, wife of Kenneth Mackenzie, Lord Fortrose, from her father's first marriage to Lady Anne Keith.

In 1761 she became a Maid of the Bedchamber to Princess Augusta of Great Britain.

In 1768 she married as his third wife Granville Leveson-Gower, 1st Marquess of Stafford, then known as The Earl Gower;.. After her husband was awarded the title of Marquess of Stafford in 1786, she was styled Marchioness of Stafford.

They had four children:

Lord Stafford died at Trentham Hall, Staffordshire, on 26 Oct 1803, aged 82. Susanna, Dowager Marchioness of Stafford, died in Stafford-street, Mayfair, on 15 Aug 1805, aged 63.

...
Wikipedia