As regards the Mongols, our knowledge of their history,of their customs, of their way of life, ourrelations with them, England presents an interestingcase. We do not know the extent of the material loston the Continent, but, in this (for the Mongols)remote corner of Europe, (in places safe from theirdevastation) documentation is to be found. A monk ofSaint Albans, the chronicler Matthew Paris who diedin 1259, is an important source. He was the onlyperson to preserve Ivo of Narbonne's confession(which reveals that an Englishman was one of thefirst envoys of the Mongols to King Bela ofHungary), the report of Bishop Peter of Russia givenat the council of Lyons in 1245 and informationabout André of Longjumeau's mission after thecouncil. Incidently, twice at the end of hisChronica Majora, in an entry forthe year 1257, Matthew Paris refers to a manuscriptconcerning ‘Tartarorum immunditias, vitam(spurcissimam) et mores (…) necnon et Assessinorumfurorem et superstitionem’. It is thesame work which is mentioned by John of Oxnead, inhis Chronka under the year 1258, as a writtencommand (mandatum scriptum) sent toSimon de Montfort, containing letters the length ofa Psalter, and entitled De vita et moribusTartarorum (…) et de eorumfortitudine etguerra, et deadquisitionibus which was to be found inthe book of Additions. Unfortunately this work hasnot survived. (Nevertheless it is tempting to seehere a mention of William of Rubruck's report of hisjourney, which has the form of a letter and whichwas written in 1257, but which has littleinformation about the Assassins. Later anotherEnglishman, the Franciscan friar Roger Bacon (†1294) met William of Rubruck and became interestedin the Mongols.)