 In November 1267 , parliament met at Marlborough . Here an important provision was issued that would become known to history as the Statute of Marlborough . This statute incorporated the clauses of the Dictum of Kenilworth that dealt with the restoration of royal power , and reconciliation between the loyalists and the rebels . The Statute of Marlborough became a basis for royal government , and the relationship between the king and his subjects , and as such the Dictum lived on in English constitutional history . 
