Anglo-Saxon charters were sometimes used in legal disputes, and the recording of the contents of a charter within a legal document has ensured the survival of text when the original charter has been lost. Overall, some two hundred charters exist in the original form, whilst others are post-Conquest copies, that were often made by the compilers of cartularies (collections of title-deeds) or by early modern antiquaries. The earliest cartularies containing copies of Anglo-Saxon charters come from Worcester, early-11th-century "Liber Wigorniensis" and "Hemming's Cartulary" of a century later; a much later example, "Wilton Cartulary", compiled in the mid-13th century at Wilton Abbey, still includes a significant amount of Anglo-Saxon material.