It has been said[16] that this account may probably be traced to early quasi-dramatic representations. ‘In any such performance, names of some kind would become a matter of necessity, and were probably invented at random.’ Though the names given in the above passage are those with which we are familiar, many others have, perhaps with equal authority, been applied to them. The nationality of the Three Kings has been as much discussed as the time taken on their journey. The natural inference would appear to be that they belonged to the priestly caste of Persia; Cornelius à Lapide considers that they were Eastern Arabians. He says: ‘The more common opinion of the Fathers and Doctors is that the Magi came on the thirteenth day from the first appearance of the star and the birth of Christ, whence the Church celebrates the mystery on the twelfth day after Christmas.’[17] In their old age they were said to have been baptized by St. Thomas, and to have associated with him in preaching the Gospel. Lastly, some have asserted that they were slain by idolaters; L. Dexter in his chronicle, under A.D. 70, adds: ‘In Arabia Felix, in the City of Sessania, took place the martyrdom of the three royal Magi; Gaspar, Balthazar, Melchior.’ We are told that early in the fourth century their bodies were discovered, and moved to Constantinople by the pious Empress Helena. Thence they found their way to Milan, being enshrined in the church of San Eustorgio. A few years later their fame was increased by the institution of the Feast of the Three Kings, which has been ascribed to Pope Julius, the first of that name. After the taking of Milan[18] by the Emperor Frederick Barbarossa, in the year 1162, the precious relics were granted to Reinaldus, Archbishop of Cologne, who brought them to that city, which proved to be their final resting-place. Cologne, proud of the honour, adopted as her arms, argent, on a chief gules, three royal crowns or; and so we have an interesting heraldic record of this event.