Prima expeditio sacra

Prima expeditio sacra fuit bellum anno 1095 ab Urbano II Papa motum, qui Alexium I, imperatorem Imperii Byzantini, adiuvando speravit duas ecclesias apostolicas reconciliatum iri. Eadem expeditione etiam speravit Hierosolyma a Musulmanis liberatum iri, qui Antiochia capta ea anno 1071 expugnaverant.

Hierosolyma a Christianis die 15 Iulii 1099 capta est.

Fontes primae expeditionis sacrae

Steven Runciman, A History of the Crusades. 3 voll. Cantabrigiae: Cambridge University Press, 1951-1954
Kenneth M. Setton, ed., A History of the Crusades (6 voll. Philadelphiae: University of Pennsylvania Press, 1955-1989) (Anglice) Textus

H. E. J. Cowdrey, "Canon Law and the First Crusade" in B. Z. Kedar, ed., The Horns of Ḥaṭṭīn: proceedings of the second conference of the second conference of the Society for the Study of the Crusades and the Latin East, 1987 (Hierosolymis: Yad Izhak Ben-Zvi, 1992. ISBN 965-217-085-2) pp. 41-48
John France, Victory in the East: a military history of the First Crusade. Cantabrigiae: Cambridge University Press, 1994. ISBN 0-521-41969-7 (Paginae selectae apud Google Books)
Norman Housley, "Jerusalem and the Development of the Crusade Idea, 1099-1128" in B. Z. Kedar, ed., The Horns of Ḥaṭṭīn: proceedings of the second conference of the Society for the Study of the Crusades and the Latin East, 1987 (Hierosolymis: Yad Izhak Ben-Zvi, 1992. ISBN 965-217-085-2) pp. 27-40
J. S. C. Riley-Smith, "The First Crusade and St. Peter" in B. Z. Kedar, H. E. Mayer, R. C. Smail, edd., Outremer: Studies in the History of the Crusading Kingdom of Jerusalem presented to Joshua Prawer (Hierosolymis: Ben-Zvi Institute, 1982. ISBN 965-217-010-0) pp. 41-63