Sentence:  ... "Deputies" were sent with Commissions into all the "Counties;" and the <WSD>Parliamentarian</WSD> Rebels by force and their own authority, invade the "Militia," which they could not obtain from the "King" by petitioning. 
Meaning of the word marked with <WSD> tags:  Of or relating to the Parliamentarians (supporters of the parliament during the (English Civil War) (1642–1651)).