E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Lady Berkley was made by Queen Mary a justice of the peace for Gloucestershire and appointed to the quorum of Suffolk. Lady Berkley sat on the bench at assizes and sessions, girt with a sword. Tony Lumpkin says of Mr. Hardcastle
Hell persuade you that his mother was an alderman and his aunt a justice of the peace.Goldsmith: She Stoops to Conquer.