Christe Redemptor omnium [gentium] Ex [De] Patre. [Christmas.] This Ambrosian hymn is sometimes ascribed to St. Ambrose, but is rejected as such by the Benedictine editors of his works. (Paris Ed. 1686-90, tom, iii; Migne, tom. 17.)
Translations in common use:—
1. Jesu, the Father's Only Son, by J. M. Neale, given in the Hymnal Noted, 1st ed., 1852, No. 13, and continued in later editions. In 1884 it was transferred to the Hymner.
2. O Christ, Redeemer of our race, by Sir H. W. Baker, appeared in the trial copy of the Hymns Ancient & Modern., 1859; 1st ed., 1861, and the revised ed., 1875.
3. 0 Christ, Redeemer of mankind, by R.F. Littledale, made for and first appeared in the People's Hymnal, 1867, and signed "F. R."
--Excerpts from John Julian, Dictionary of Hymnology (1907)