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.

Run privately for profit, as were all English prisons until the 19th century, the Marshalsea looked like an Oxbridge college and functioned as an extortion racket. Debtors in the 18th century who could afford the prison fees had access to a bar, shop and restaurant, and retained the crucial privilege of being allowed out during the day, which gave them a chance to earn money for their creditors. Everyone else was crammed into one of nine small rooms with dozens of others, possibly for years for the most modest of debts, which increased as unpaid prison fees accumulated. The poorest faced starvation and, if they crossed the jailers, torture with skullcaps and thumbscrews. A parliamentary committee reported in 1729 that 300 inmates had starved to death within a three-month period, and that eight to ten were dying every 24 hours in the warmer weather.