She was a daughter of Charles Paulet, 1st Duke of Bolton, by his second wife Mary Scrope.

Jane had nine children with the 3rd Earl: The eldest son, Viscount Brackley, and his younger brother Thomas, died aged 11 and 7 respectively, along with their private tutor, in a fire which destroyed the family's London home of Bridgwater House.

[2] This left a younger brother, Scroop, as the heir to the earldom.

Following her husband's death, Jane was known by the title "Dowager Countess of Bridgewater".

In 1724 a controversy arose over the distribution of property in her will, causing her daughter Elizabeth to instigate a court case.