Complex sentence: Auchinleck is believed to have been produced in London around 1340, by hack scribes, who were laymen, not monks as was usually the case, and the number of scribes involved in the production is a source of debate with scholars of Middle English.
Split into simpler sentences: Auchinleck is believed to have been produced in London around 1340, by hack scribes, who were laymen, not monks as was usually the case. The number of scribes involved in the production is a source of debate with scholars of Middle English.