Royal Mint was historically part of a series of mints that became centralised to produce coins for the Kingdom of England, all of Great Britain and eventually most of the British Empire. The original London mint from which the Royal Mint is the successor, was established in 886 AD and operated within the Tower of London for approximately 800 years before moving to what is now called Royal Mint Court where it remained until the 1960s. As Britain followed the rest of the world in decimalising its currency, the Mint moved from London to a new plant in Llantrisant, Wales where it
Royal Mint Court before becoming a mint in 1809. After the mint relocated, the site was redeveloped with a new office and residential block added to the complex alongside the two remaining Grade II listed mint buildings. As of 2017, Royal Mint Court is again set to be re-developed with plans for a new office, shopping and leisure complex. Planning permission was approved in July 2016. In 1349 during the Black Death the site became a plague cemetery known as the "Churchyard of the Holy Trinity" where three mass burial trenches and 14 grave rows were dug alongside a small chapel. During excavation