Montagu House (sometimes also spelt Montague) was a prominent residence situated near to the southwest corner of Greenwich Park (today the junction of Charlton Way and Chesterfield Walk), overlooking the common at Blackheath in what is today southeast London.
[5] Leased from the Duchess of Buccleuch,[6] Montagu House later became the residence of the estranged wife of the Prince Regent (later King George IV).
Lady Douglas became Caroline's companion, living for a time at Montagu House[10] before their friendship broke down, and rumours about scandalous events at the house began to circulate; Lady Douglas alleged that Caroline had admitted to having had an illegitimate child, William Austin.
However, public sympathy tended to side with Caroline; an 1813 cartoon following the "Delicate Investigation" showed the ridiculed Sir John and Lady Douglas being led to a pillory erected outside Montagu House.
[11] All the Montagu House buildings were demolished in 1815[7] (the site is now occupied by the Chesterfield Walk tennis courts).