The lost church of St Christopher le Stocks stood on the current site of the Bank of England. The first written record of the church is from 1282. The name comes from the “Stocks Market” – a market for meat and vegetables which was held at the site of what is now Mansion House where there were a set of stocks for punishment. The original church was destroyed in the Great Fire of 1666 but we have some idea of what it looked like from the Agas map of 1560 and the Hollar Panorama. On the latter we see a church next to the Royal Exchange which, although it is not identified, is probably St Christopher le Stocks ( see images below) .
After the fire, it was rebuilt by Wren in 1671 and was one of the first churches to be completed by him. The Bank of England created in 1694 was originally in Walbrook but moved to Threadneedle Street in 1734, right next to the church of St Christopher.
The Gordon Riots of 1780 created fears that this tall church could be used to launch an attack on the bank beside it and so it was demolished in 1781. The three maps below show how the Bank of England gradually encroached on the parish so that by Horwood’s map of 1799 it had been gobbled up completely, and the parish merged with St Margaret Lothbury. However, we can still see the two sets of parish boundary markers on the walls of the Bank of England, so the church is not completely forgotten. The first set are in Threadneedle Street, partially hidden behind the Greek columns and mark the boundary between St Christopher le Stocks and St Bartholomew by the Exchange (which is another lost church). The second set in Princes Street mark the boundary between St Christopher and St Margaret Lothbury.
There is one more remnant of the lost church of St Christopher le Stocks. When the Bank of England was redeveloped in 1867, and again in the 1930s, the remains of those buried in the churchyard were reinterred in Nunhead Cemetery in South East London. If you visit there you will find the memorial below whose inscription reads:
Sub Hoc Saxo
Civium Londinensium Reliquiae
Subter Aedem Jamoudum Dirutam
Sancti Christopher le Stocks
Olim Sepultae Bis Exhumatae Tandem Requiescum
A.S MDCCCLXVII
which translates as :
Under This Stone
Relics of the Citizens of London
Beneath the building destroyed a long time ago
Saint Christopher le Stocks
Once Buried Twice Exhumed Finally at Rest
AD 1867
the wikipedia page for St Christopher le Stocks is here