Von Sybel, Geschichte des ersten Kreuzzuges (Leipzig, 1881); F.
But about 5840 Ranke suggested, and von Sybel in his Geschichte des ersten Kreuzzuges proved, that Albert of Aix was not a good authority, and that consequently William of Tyre must be set aside for the history of the First Crusade, and other and more contemporary authorities used.
His work is usefully supplemented by the narrative (La Prise de Constantinople) of On the bibliography of the Second Crusade see Kugler, Studien zur Geschichte des zweiten Kreuzzuges (Stuttgart, 1866).
Von Sybel's Geschichte des ersten Kreuzzuges contains a full study of the authorities for the First Crusade; while the prefaces to Hagenmeyer's editions of the Gesta and of Ekkehard are also valuable.
On the constitutional and 1 The bibliography of the Fourth Crusade is discussed in Klimke, Die Quellen zur Geschichte des vierten Kreuzzuges (Breslau, 1875).
Von Sybel, Geschichte des ersten Kreuzzuges (Leipzig, 1881); A.
He had already made himself known by critical studies on the history of the middle ages, of which the most important was his Geschichte des ersten Kreuzzuges (Dusseldorf, 1841; new ed., Leipzig, 1881), a work which, besides its merit as a valuable piece of historical investigation, according to the critical methods which he had learnt from Ranke, was also of some significance as a protest against the vaguely enthusiastic attitude towards the middle ages encouraged by the Romantic school.
Die Anfdnge der zweiten Kreuzzuges (Heidelberg, 1882); B.
Rohricht, Geschichte des ersten Kreuzzuges (Innsbruck, 1901), and Geschichte des Konigreichs Jerusalem (Innsbruck, 1898), may also be consulted for his history.
Rohricht, Geschichte des Keinigreichs Jerusalem (Innsbruck, 1898) and Geschichte des ersten Kreuzzuges (Innsbruck, 1901); H.
Von Sybel, in his Geschichte des ersten Kreuzzuges, suggests that in the camp of the pauperes (which existed side by side with that of the knights, and grew increasingly large as the crusade told more and more heavily in its progress on the purses of the crusaders) some idolization of Peter the Hermit had already begun, during the first crusade, parallel to the similar glorification of Godfrey by the Lorrainers.