Note 268 — Chapter I · THE CHURCH’S YEAR (continued 2)
Reading edition
Binterim (Denkw., v. 270) rejects the view that Alcuin had anything to do with the matter, and considers that the festival was introduced not through him, but through a certain Catulfus at the court of Charlemagne. The well-meant but rather obscure letter of this Catulfus is printed in Migne, xcvi. 1363. Careful consideration of the passage in question shows he is speaking of the honour of the Trinity in general, and not of any festival of the Holy Trinity.