 The authenticity of this document, however, has been questioned.Simon Keynes in 1980 showed that it belongs to the so-called "Orthodoxorum" group of charters, so named after the initial word of their proem, which he concluded were forgeries based on a charter of Æthelred II's reign.Since then, Susan Kelly and John Hudson have vindicated the status of some of these charters, including the one for Pershore, which is written in square minuscule characteristic of some of Edgar's charters.