🔒 Marshalsea

The Marshalsea (1373–1842) was a notorious prison in Southwark, just south of the River Thames. Although it housed a variety of prisoners—including men accused of crimes at sea and political figures charged with sedition—it became known, in particular, for its incarceration of the poorest of London's debtors. Over half of England's prisoners in the 18th century were in jail because of debt.