In later times of more critical scholarship the learned and accurate Professor Hermann Adalbert Daniel has devoted much study to the hymn, and has reached the conclusion that it belongs to that king whom the Germans are never tired of praising—Charles the Great (Karl der Grosse), by the French called Charlemagne. Led by his illustrious opinion the compilers and translators have, without another question, set it down for Charles’s work. So it has gone; the minor German collators, like Königsfeld and others, following peacefully in the rear of an original investigator. This was not true, however, of men who hunted for proof on their own account, as, for instance, Mone and Wackernagel. But it is distinctly true of the English scholars, among whom Archbishop Trench appears to carry the most prevalent influence. They usually assent without a murmur to this conjecture of Daniel indorsing Thomasius, who was, so far as can be discovered, the parent of the opinion. The only real exception is the Scotch hymnologist, Dr. H. M. MacGill, who doubts, but conforms to the opinion which is in vogue. The grounds of this general confidence in Charles’s authorship it may be proper to mention here in brief. We know it is said that he was a patron of learning, a friend of scholars, and a devout believer in the orthodox theology. In the year 809 he took an active part in a synod at Aquisgranum which affirmed the doctrine that the Holy Spirit proceeded from both the Father and the Son. There is, furthermore, a statement, quoted by Cardinal Thomasius from the _Acta Sanctorum_, which goes in the direction of a positive assertion. In the life of the Blessed Notker it is said that this hymn was composed by Carolus Magnus.