In "Great Expectations", Mr. Wemmick, who is the clerk to Mr. Jaggers and takes Pip under his wing; refers to his father as "the Aged P" as well as "the Aged Parent" and sometimes "the Aged".
That's Mr. Wemmick, Sr., father of Mr. Wemmick, Mr. Jagger's law clerk. Wemmick also affectionately refers to him as the 'Aged P.' Mr. Wemmicks father...is the aged.
he is deaf
"At nine o'clock every night, Greenwich time," said Wemmick, “the gun fires. There he is, you see! And when you hear him go, I think you'll say he's a Stinger."
Mr. Wemmick's mouth
He walked among the prisoners like a gardener might walk among his plants.
Mr. Wemmick was a short man.
John Wemmick was created in 1861.
John Wemmick, Jaggers' clerk, lives in a replica of a castle with his father, the Aged P.
I think the answer to your question is Newgate Prison. However, Wemmick also takes Pip to the Church where Wemmick gets married.
Pip, Herbert and Wemmick decide the home of Herbert's sweetheart, Clara, is a safe place for Magwitch to hide until they find a ship on which he can escape. Clara cares for her crusty, bedridden father there and they consider that their best option.
Mr. Wemmick is a practical and loyal clerk at Jaggers' law firm. He presents a stark contrast between his work and personal life, with a tough, businesslike demeanor at work and a kind, caring nature at home. He is known for his unique home, the Castle, and his devotion to his elderly father.
John Wemmick's bride is his longtime lady friend Miss Skiffins who came over to Wemmick's cottage. "the castle", every Sunday afternoon for tea with John and his father, known fondly as "the Aged". Miss Skiffens had a brother, an accountant, who helped John and Pip arrange a secret payment to Clarriker's trading house, buying a partnership, (unknown to him), for Herbert Pocket.