Jesu, Creator of the world. By E. Caswall. First published in his Lyra Catholica, 1849, p. 116, and in his Hymns and Poems, 1873, p. 66, in 6 stanzas of 4 lines. This translation [of Auctor beate saeculi] is found in several collections, at times slightly altered, but generally as rendered by Caswall.
-- John Julian, Dictionary of Hymnology (1907)