Lothbury is the area in which Lord Lovel travels to find young Marbeck. Here he resides with his father who is a money keeper or tradesman (volume1, chapter2). This is a pivotal moment, as Shelley introduces the reader early in the novel to her main character and with historical acurracy posisitons him a place known for the working class of London. This area is also revelant in Lodore as it is near the place which Ethel reside with her husband during his arrest.
In addition, this arear is notable for its' Italian influence in architecture. https://lookup.london/7-lothbury/
The area was populated with coppersmiths in the Middle Ages before later becoming home to a number of merchants and bankers. According to Stow, the street was "possessed for the most part by founders that cast candlesticks, chafing dishes, spice mortars, and such-like copper or laton works, and do afterwards turn them with the foot and not with the wheel, to make them smooth and bright with turning and scratching (as some do term it), making a loathsome noise to the by-passers that have not been used to the like, and therefore by them disdainfully called Lothberie
Lothbury—Its Former Inhabitants—St. Margaret's Church—Tokenhouse Yard—Origin of the Name—Farthings and Tokens—Silver Halfpence and Pennies—Queen Anne's Farthings—Sir William Petty—Defoe's Account of the Plague in Tokenhouse Yard.
Of Lothbury, a street on the north side of the Bank of England, Stow says: "The Street of Lothberie, Lathberie, or Loadberie (for by all those names have I read it), took the name as it seemeth of berie, or court, of old time there kept, but by whom is grown out of memory. This street is possessed for the most part by founders that cast candlesticks, chafing dishes, spice mortars, and such-like copper or laton works, and do afterwards turn them with the foot and not with the wheel, to make them smooth and bright with turning and scratching (as some do term it), making a loathsome noise to the by-passers that have not been used to the like, and therefore by them disdainfully called Lothberie." https://www.british-history.ac.uk/old-new-london/vol1/pp513-515
