Ascalon, Gaza, Negev and Sinai
132. Casium - (Ras Qasrun, al-Qeis)
The name alludes to the city of Kasion, which developed around the famous promontory called Mount Casius, at the northernmost point of the sandbank. Since the time of Herodotus it had been a border point between Egyptians and Arabs, the two peoples who were then holding the north Sinai coast. A famous temple seems to have existed there since time immemorial, and in the Hellenistic period this city became famous for its naval and textile industries. In the Byzantine period, it was a bishopric suffragan of Pelusium. Following the Ephesus Council of AD 431, its bishop Lampetius was sent to Rome by Patriarch Cyril of Alexandria together with his neighbor the bishop of Rhinocorura for a mission to the Pope. In the fifth century Romanus, the Monophysite monk, erected a monastery in Casium (Ruphus, Pler.), from which the relics of Bishop James Baradeus were stolen and brought to Syria in AD 622 (M.-A. Kugener, Ed., Vie de Sevère par Zacharie le Scholastique, PO 2, Paris 1903 [reprint 1980]). Jerome is one of the few Church Fathers to refer to Casium, when he includes it among the "five towns of the land of Egypt speaking the language of Canaan," as reported by the Prophet Isaiah (Jer., Isa [19:18]).
P. Figueras, "The Road Linking Palestine and Egypt along the Sinai Coast", The Madaba Map Centenary, p. 222-223 (see also the complete article).
Herbert Donner (The Mosaic Map of Madaba, Kampen 1992, 78)
This a settlement near the sanctuary of Zeus Kasios, the Hellenistic-Roman successor of ancient Baal Zaphon. The village, often mentioned in Byzantine sources, was situated at the western edge of the Sabhat al-Bardawil, the ancient Sirbonic Lake, about 15 km east of Pelusium (no. 139).
Noël Duval ("Essai sur la signification des vignettes topographiques", in The Madaba Map Centenary, Jerusalem 1999, 142)
To Kasin = Kasion, Kasin, etc. Le sanctuaire anciennement réputé et évêché d'Augustamnica I est représenté par une courtine, deux tours et la façade d'une église. A Umm al-Rasas, la représentation correspondante est très simplifiée : deux tours ou un bâtiment et une tour. (See also the complete article)
For more sources and bibliography see:
Tabula Imperii Romani. Iudaea - Palaestina (Jerusalem 1994) s.v. "Casius", 101.
Map Section 9 Place Sources