According to The Eyres of Derbyshire, many speculate that Charlotte Bronte based Thornfield Hall off of the famous North Lees Hall in Hathersage (TED). The Eyres of Derbyshire claim that Bronte visited the Hall on more than a few occasions when staying with her friend Ellen Nussey in Hathersage (TED). Many of the descriptions of Thornfield in Jane Eyre match those of North Lees Hall such as "the battlemented façade, the view from the roof and the Apostles Cabinet, a unique item of furniture (TED). Not only did Bronte rely on the furniture and overall hall as a form of inspiration for the novel, but the Eyres of Derbyshire claim that there was even a "madwoman" who was kept in a private, padded room upstairs in North Lees Hall during one of Bronte's stays who would later become the inspiration for Jane Eyre's "Bertha" who was considered the "madwoman in the attic" (TED).
https://sites.google.com/site/thshomepage/north-lees-hall
“North Lees Hall - The Eyres of Derbyshire.” North Lees Hall, Google Sites.

KJ