This book consists of a study of two important and related pieces of thirteenth-century English legislation--the Provisions of Westminster of 1259 and the Statute of Marlborough of 1267. In establishing the political and legal context of these statutes and examining the process of drafting them, the volume utilizes an exceptionally wide range of manuscript sources. Revealing how the legislation was used and interpreted up to 1307, it is the first major work on any of the statutes in this period of major legislative change.