Original sentence: After the Second Civil War, the New Model Army which was dominated by Congregationalists (or Independents) seized control of the parliament with Pride's purge (1648), arranged for the  trial and execution of King Charles I in January 1649 and subsequently introduced a republican Commonwealth dominated by Independents such as Oliver Cromwell.This government lasted until 1660 when the monarch was restored and Episcopalism was re-established (see the Penal Laws and Great Ejection)
Edited sentence: After the Second Civil War, the New Model Army which was dominated by Congregationalists (or Independents) seized control of the parliament with Pride's purge (1648), arranged for the  rigged trial and regicide of Charles I in January 1649 and subsequently introduced a republican Commonwealth dominated by Independents such as Oliver Cromwell.This government only lasted until 1660 when the monarch was restored and Episcopalism was re-established (see the Penal Laws and Great Ejection)