Who are the people visiting Statis house in chapter 11? Why are they?

The guests visiting Satis House are: Sarah Pocket, a "vicious," "dry, brown, corrugated woman;" Georgiana, "the grave lady;" Camilla, an old melodramatic woman; and her husband, Cousin Raymond. All are, apparently, the same age or a little younger than the withered Miss Havisham and all come to see her on the same day of the year, every year: her birthday, which also happens to be the day when the cake was set out and the clocks were stopped so many years ago; i.e. the day Miss Havisham stopped living.

The guests visiting Satis House are: Sarah Pocket, a "vicious," "dry, brown, corrugated woman;" Georgiana, "the grave lady;" Camilla, an old melodramatic woman; and her husband, Cousin Raymond. All are, apparently, the same age or a little younger than the withered Miss Havisham and all come to see her on the same day of the year, every year: her birthday, which also happens to be the day when the cake was set out and the clocks were stopped so many years ago; i.e. the day Miss Havisham stopped living.