Complex sentence: The London faction of the New Model Army arrested him, but on 7 December that year, as the London faction's star fell and Monck's rose, the Rump ordered Chaloner's release, and in January 1660 confirmed his governorship of the Isle of Man.
Split into simpler sentences: The London faction of the New Model Army arrested him, but on 7 December that year as the London faction's star fell and Monck's rose. The Rump ordered Chaloner's release, and in January 1660 confirmed his governorship of the Isle of Man.