Royal Mint resume minting their own supplementary tokens. In 1672 the Royal Mint finally took over the production of copper coinage. Prior to the outbreak of the English Civil War, England signed a treaty in 1630 with Spain which ensured a steady supply of silver bullion to the Tower mint. Additional branch mints to aid the one in London were set up including one at Aberystwyth Castle, in Wales. In 1642 parliament seized control of the Tower mint and after Charles I tried to arrest the Five Members he was forced to flee London, establishing at least 16 emergency mints across the
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