Fulcher, a participant in the First Crusade and chaplain of Baldwin I, continued his chronicle up to 1127. Fulcher's chronicle was very popular and was used as a source by other historians in the west, such as Orderic Vitalis and William of Malmesbury. Almost as soon as Jerusalem had been captured, and continuing throughout the 12th century, many pilgrims arrived and left accounts of the new kingdom; among them are the English Sæwulf, the Kievan Abbot Daniel, the Frank Fretellus, the Byzantine Johannes Phocas, and the Germans John of Würzburg and Theoderich. Aside from these, thereafter there is no eyewitness to events in Jerusalem until William of Tyre, archbishop of Tyre and chancellor of Jerusalem, who began writing around 1167 and died around 1184, although he includes much information about the First Crusade and the intervening years from the death of Fulcher to his own time, drawn mainly from the writings of Albert of Aix and Fulcher himself. From the Muslim perspective, a chief source of information is Usamah ibn Munqidh, a soldier and frequent ambassador from Damascus to Jerusalem and Egypt, whose memoirs, "Kitab al i'tibar", include lively accounts of crusader society in the east. Further information can be gathered from travellers such as Benjamin of Tudela and Ibn Jubayr.