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 Ronnie Ellenblum   רוני אלנבלום
Head of Vadum Iacob Research Project which he initiated already in 1993.
Associate Professor in Geography, the Hebrew University of Jerusalem. Head of the  School of History. Scientific interests: Medieval Gegoraphies and the historical geography of the Crusades.  and especially the Frankish rural and fortified settlement in the Levant. Secondary interests are the study of medieval construction methods and the concepts of frontiers and borders in the middle ages.
As a former geology student he participated together with Prof. Amotz Agnon of the Hebrew University,   Dr. Marco of Tel Aviv university [formerly the Geological Survey] and Tom Rockwell of San Diego State University in the interpretation of the earthquakes in Vadum Iacob.


Ellenblum, R., 1998, Frankish Rural Settlement in the Latin Kingdom of Jerusalem, Cambridge, Cambridge University Press, 425 pages.

Ellenblum, R., 2006, Crusader Castles and Modern Histories, Cambridge, Cambridge University Press, 362 pages.

Relevant Articles
Ellenblum, R. Rubin, R. and Sollar, G. 1996a, “Khirbat al-Lawza, a Frankish Farm House in the Judean Hills in Central Palestine”, Levant, 28, 189-198.

Ellenblum, R. 1996b, “Colonization Activities in the Frankish East: The Example of Castellum Regis [Mi'ilya]”, English Historical Review, 111, 104-122.

Ellenblum, R. 1996c, “Frankish Castles in The Crusader Kingdom of Jerusalem, the Third Generation”, in: M. Balard (ed.), Le Concile de Clermont et la prémiere Croisade, Paris, 518-551. Publications de la Sorbonne. Ser. Byzantina sorbonensia , 14.

Marco, S.,s Agnon, A.,pi Ellenblum, R.,pi Eidelman, A., Basson, U., and Boas, A., 1997. “817-year-old walls 33/2007 offset sinistrally 2.1 m by the Dead Sea Transform, Israel”, Journal of Geodynamics, 24, 11-20. 1.058, 23/51,14

Ellenblum, R.,pi Marco, S.,c Agnon, A.,pi Rockwell, T.,pi and Boas, A.,c 1998. “Crusader castle torn apart by earthquake at dawn, 20 May 1202”, Geology, 26, 303-306. 2.649, 1/34, (22 citations including 14 in the ISI).

Ellenblum, R. 2001, ‘Frankish and Muslim Siege Warfare and the Cnstruction of Frankish Concentric Castles’, in M. Balard, J. Riley-Smith and B. Z. Kedar (eds.), Dei Gesta. Studies in Crusade History in Honour of Professeur Jean Richard, Paris, pp. 211-222. Aldershot : Ashgate

Ellenblum, R. 2002, ‘Were there Borders and Border-lines in the Middle Ages? The Example of the Latin Kingdom of Jerusalem’, N. Berend & D. Abulafia (eds.), Frontiers in the Middle Ages, London, pp. 105-119. Aldershot : Ashgate.

Ellenblum, R., 2003, ‘Frontier Activities: the Transformation of a Muslim Sacred Site into the Frankish Castle of Vadum Iacob’, Crusades, 3, 83-98.

Segal, Y.,s Marco, S.,pi Ellenblum, R.,c 2003, Intensity and direction of the geomagnetic field on 24 August, 1179 measured at Vadum Iacob (Ateret) Crusader Fortress, northern Israel, Israel Journal of Earth Sciences, 52/3. 203-208.

Mitchell P. D., c Nagar Y., c Ellenblum, R., pi 'Weapon injuries in the 12th century Crusader garrison of Vadum Iacob Castle, Galilee', 2006, International Journal of Osteoarchaeology 16: 2 , 145 – 155.

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