My sister Gower carries her off to-morrow morning to Staffordshire.
The lies, twaddles, and contrivances about this affair are innumerable.
I should pity the poor girl if I saw she pitied herself." Lady Gower did not long enjoy her victory over her friends and her fond relations, for she died in June, 1727.
In May, 1732, Lord Mar died at Aix-la-Chapelle.

Lady Mary's sister, Lady Mar, in later years suffered from mental irregularity.

Her brother-in-law, James Erskine, Lord Grange, endeavoured to secure possession of her person by some process of law, but was thwarted by Lady Mary, who obtained a warrant from the King's Bench.

For years Lady Mar remained in her sister's custody.

She survived until 1761.