The Declaration of Breda (issued on 4 April 1660) was a proclamation by Charles II of England in which he promised a general pardon for crimes committed during the English Civil War and the Interregnum for all those who recognised Charles as the lawful king; the retention by the current owners of property purchased during the same period; religious toleration; and the payment of pay arrears to members of the army, and that the army would be recommissioned into service under the crown. The first three pledges were all subject to amendment by acts of parliament.
The declaration was written in response to a secret message sent by General George Monck, who was then in effective control of England. On 1 May 1660, the contents of the declaration and accompanying letters were made public. The next day Parliament passed a resolution that "government ought to be by King, Lords and Commons" and Charles was invited to England to receive his crown. On 8 May Charles was proclaimed King. On the advice of Monck, the commons rejected a resolution put forward by jurist Matthew Hale (a member for Gloucestershire) for a committee to be formed to look into the concessions offered by Charles and to negotiate conditions with the King such as those put forward to his father in the treaty of Newport.
The declaration was named after the city of Breda in the Netherlands. It was actually written in the Spanish Netherlands, where Charles had been residing since March 1656; however, at the time of writing, England had been at war with Spain since 1655. To overcome the difficulties, both practical and in terms of public relations, of a prospective King of England addressing his subjects from enemy territory, Monck advised Charles to relocate himself to the United Netherlands, and to date his letters as if they were posted from Breda. Charles left Brussels, his last residence in the Spanish Netherlands, and passing through Antwerp arrived in Breda on 4 April, and resided there until 14 May. Then he travelled to The Hague, where he was received by the States General of the Netherlands as a ruling King of England and grandiosely entertained, and departed for England on 2 June from Scheveningen on the HMS Royal Charles, the former Naseby which was renamed on arrival at the Dutch coast. The declaration, however (actually several letters, addressed to Monck, the Houses of Parliament, and the City of London), was despatched as soon as Charles had crossed the border of the Dutch Republic, and was dated 4 April (OS)/14 April (NS).