The Brownist movement revived in London from around 1587, led by Henry Barrow and John Greenwood. Both were arrested in 1587 and kept in prison until their execution in 1593. They wrote numerous books of Brownist theology and polemic in secret during their imprisonment, which were smuggled out by their followers and printed in the Netherlands, the most important being Barrow's "A Brief Discoverie of the False Church". Dozens of other Brownists were imprisoned and many of them died in jail.