Neither Corinth (as Lightfoot) nor Rome (as Harnack, who assigns it to Bishop Soter, c. 166-174) satisfies all the internal conditions, while the Eastern nature of the external evidence and the homily's quasi-canonical status in the Codex-Alexandrinus strongly favour an Alexandrine origin.
What can be thought of a writer who assigns to Yazdegerd I.
The preface to this work places Cerdic's assumption of the sovereignty six years after his landing, that is, in the year 500, and assigns him a reign of sixteen years, which makes his death fall eighteen years before 534, the date recorded in the annals.
Again, while the annals record Ceawlin's accession in 560 and his expulsion in 592, the preface with other early authorities assigns him a reign of only seventeen years.
In 1559 as a military body, though tradition assigns it to Constantine the Great and Pope Sylvester.