The Kirk Party were a radical Presbyterian faction of the Scottish Covenanters during the Wars of the Three Kingdoms. They came to the fore after the defeat of the Engagers faction in 1648 at the hands of Oliver Cromwell and the English Parliament. They purged the Covenanter's General Assembly and army of "unGodly elements" and crowned Charles II as King of Scotland in 1651, in return for his explicit endorsement of their religious and political agenda in the Treaty of Breda (1650).