Complex sentence: In 1817, an unemployed Nottingham stockinger and probably ex-Luddite named Jeremiah Brandreth led the Pentrich Rising, which was a general uprising unrelated to machinery, but which could be viewed as the last major Luddite act.
Split into simpler sentences: In 1817, an unemployed Nottingham stockinger and probably ex-Luddite, named Jeremiah Brandreth led the Pentrich Rising. While this was a general uprising unrelated to machinery, it can be viewed as the last major Luddite act.