The erection of stately castles and yet statelier Abbeys which followed the Conquest, says Mr Green, the rebuilding of almost every cathedral and conventual church, mark the advent of the Jewish capitalist. From this time forward till 1289 the Jew was protected in England and his commercial enterprise fostered. He was introduced and protected as a chattel of the King, and as such exempt from the common law and common taxation of Englishmen. In Oxford, as elsewhere, the Jews lived apart, using their own language, their own religion and laws, their own peculiar commerce and peculiar dress. Here the Great and Little Jewries extended along Fish Street (S. Old's) to the present Great Gate of Christ Church, and embraced a square of little streets, behind this line, which was isolated and exempt from the common responsibilities and obligations of the town. The church itself was powerless against the Synagogue, which rose in haughty rivalry beside the cloister of S. Frideswide. Little wonder if the Priory and Jewry were soon at deadly feud. In 1185 we find Prior Phillip complaining of a certain Deus-cum-crescat (Gedaliah) son of Mossey, who, presuming upon his exemption from the jurisdiction of any but the King, had dared to mock at the Procession of S. Frideswide. Standing at his door as the procession of the saint passed by, the mocking Jew halted and then walked firmly on his feet, showed his hands clenched as if with palsy and then flung open his fingers. Then he claimed gifts and oblations from the crowd who flocked to S. Frideswide's, on the ground that such recoveries of limb and strength were quite as real as any Frideswide had wrought. But no earthly power, ecclesiastic or civil, ventured to meddle with Deus-cum-crescat. The feud between Jewry and Priory lasted long. It culminated in 1268 in a daring act of fanaticism, which incidentally provides a curious proof of the strong protection which the Jews enjoyed, and of the boldness with which they showed their contempt for the superstitions around them. As the customary procession of scholars and citizens was returning on Ascension Day from S. Frideswide's, a Jew suddenly burst from the group of his friends in front of the synagogue, and snatching the crucifix from its bearer, trod it underfoot. But even in presence of such an outrage, the terror of the Crown shielded the Jewry from any burst of popular indignation. The King condemned the Jews of Oxford to make a heavy silver crucifix for the University to carry in the processions, and to erect a cross of marble where the crime was committed; but even this punishment was in part remitted, and a less offensive place was allotted for the cross in an open plot by Merton College.