"Pegg must have been Margaret Hughes, Prince Rupert's mistress,
who had probably before that time lived with Sir Charles
Sedley."
And then follows some account of Mrs. Hughes. But, _query_, was the
"Pegg" of the _Diary_, Peg Hughes? was she not rather as I belived her
to have been, Katherine Pegg, by whom king Charles II. had a son,
Charles Fitz-Charles, created Earl of Plymouth, 29th July, 1675, died
1680?
Katherine Pegg has escaped Lord Braybrooke. Can any of your
correspondents tell me who she was?