In this manuscript

British Library, London, England
MS Harley 261

This manuscript was probably produced in the cathedral priory of St Andrew, Rochester, and dates from the last quarter of the twelfth or the first quarter of the thirteenth century. In addition to the Quadripartitus text, it contains William of Malmesbury's Gesta regum anglorum and Gesta pontificum anglorum, and Henry of Sawtrey's De purgatorio S. Patricii.  Like other members of one group of manuscripts of the Gesta regum, this manuscript includes a copy of Quadripartitus' Latin translation of William I's regulations on proof (Wl lad).