Note 52 — Chapter VII · LEO THE ISAURIAN TO JOANNES ZIMISCES [717-969 A.D.]
Reading edition
[During the reigns of Leo IV, Constantine VI, and Irene there were frequent conflicts with the Saracens, the Bulgarians, and with the troops of Charlemagne, who at one time purposed to reunite the old Roman Empire by marrying Irene, on which Buryh comments that such a marriage of ill-assorted nations would have been followed by a speedy divorce.]