ISIDORE OF PELUSIUM (c. 370-c. 450) was an abbot in a cloister at the east mouth of the Nile. Writing of the fourth beast, he declares that it “plainly designated the kingdom of the Romans,” 115Isidore of Pelusium, Epistolarum Libri Quinque, book 1, epistle 218, in Migne, PC, vol. 78, col. 320. again indicating that the Porphyry theory of Greece was not generally accepted at this time. PFF1 432.3