序言
1. Fulcher of Chartres, I.2.i, pp. 62-3.
2. Robert the Monk, I.1, p. 79.
3. Ibid., pp. 79-80.
4. Fulcher of Chartres, I.3.iv, p. 66.
5. Baldric of Dol, IV.1, p. 15.
6. Robert the Monk, I.1, pp. 79-80.
7. 所有關於烏爾班二世講演的主要記述文獻都是在12世紀初寫成的，在第一次十字軍東征之後。對其重要性的評述，可參見下引文獻，第十二章； pp. 200-1.
8. Guibert of Nogent, I.1, p. 87; also Fulcher of Chartres, I.3.v-viii, pp. 66-7; Robert the Monk, I.2, p. 81; R. Somerville, The Councils of Urban II:Decreta Claromontensia (Amsterdam, 1972), p. 74.
9. Robert the Monk, I.2, pp. 81-2; Fulcher of Chartres, I.4.iv, p. 68; Guibert of Nogent, II.5, p. 117.
10. V. Tourneur, 'Un denier de Godefroid de Bouillon frappé en 1096', Revue belge de numismatique 83 (1931), pp. 27–30; cf. N. Bauer, 'Der Fund von Spanko bei St Petersburg', Zeitschrift für Numismatik 36 (1926), pp. 75–94.
11. 可參見，比如，J. Riley-Smith, The First Crusade and the Idea of Crusading (London, 1986), pp. 31ff.
12. 關於在克萊蒙通過的有關耶路撒冷的諭令，參見Somerville, Councils of Urban II, pp. 74, 124, 及 R. Somerville, Papacy, Councils and Canon Law (London, 1990), pp. 56-65 and 325-37. 另見 Riley-Smith, First Crusade, pp. 13-30.
13. 信中說，1097年在尼西亞集結的十字軍有30萬人，1099年9月阿斯卡隆戰役時大概有20萬多點，不過這個數字沒有包括耶路撒冷的駐軍或當時其他由西方騎士控製的城鎮中的駐軍。Barber and Bate, Letters, pp. 34–5. 關於十字軍的規模，參見J. France, Victory in the East: A Military History of the First Crusade (Cambridge, 1993), pp. 122–42.
14. Raymond of Aguilers, I, p. 18; Albert of Aachen, V.40, pp. 392–4.
15. Albert of Aachen, III.28, p. 182.
16. Ralph of Caen, 119, p. 135.
17. 參見，比如，J. Riley-Smith, The First Crusaders 1095–1131 (Cambridge, 1997); M. Bull, Knightly Piety and the Lay Response to the First Crusade: The Limousin and Gascony (Oxford, 1993); France, Victory in the East; T. Asbridge, The First Crusade: A New History (London, 2004). 關於對十字軍的總體研究C. Tyerman, God's War: A New History of the Crusades (London, 2006), J. Phillips, Holy Warriors: A Modern History of the Crusades (London, 2010).