Johan de Witt had been unable to function as Grand Pensionary after being wounded by an attempt on his life on 21 June. On 15 August, William published a letter from Charles, in which the English king stated that he had made war because of the aggression of the De Witt faction. The people thus incited, De Witt and his brother, Cornelis, were brutally murdered by an Orangist civil militia in The Hague on 20 August. Subsequently, William replaced many of the Dutch regents with his followers.