John Milton, in a sonnet written during the siege of Colchester, called upon the Lord General to settle the kingdom, but the crisis was now at hand. Fairfax was in agreement with Cromwell and the army Leaders in demanding the punishment of Charles, and he was still the effective head of the army. He approved, if he did not take an active part in, Pride's Purge (6 December 1648), but on the last and gravest of the questions at issue he set himself in deliberate and open opposition to the policy of the officers. He was placed at the head of the judges who were to try the King, and attended the preliminary sitting of the court. Then, convinced at last that the King's death was intended, he refused to act. Fairfax had never desired the death of the King. In calling over the court, when the crier pronounced the name of Fairfax, it is said that his wife, Anne Fairfax, said "he had more wit than to be there". Later when the court said that they were acting for "all the good people of England", she shouted ‘No, nor the hundredth part of them!". This resulted in an investigation and Anne was asked or required to leave the court. It was said that Anne could not forbear, as Bulstrode Whitelocke says, to exclaim aloud against the proceedings of the High Court of Justice. In February 1649 Fairfax was elected Member of Parliament for Cirencester in the Rump Parliament. Anne was later approached to intercede on the King's behalf to prevent his execution.