566 A.D.

• 566: 566 x 2 = 1132 → see 1132 A.D. for further commentary

• 566: 566 ÷ 2 = 283, the year in which Finn MacCool died according to the Annals of the Four Masters → see 1132 A.D. for further commentary

Commentary

In the Annals of the Four Masters, there is only one entry for 566 A.D:

• After Ainmire, son of Sedna, was three years in the sovereignty of Ireland, he was slain by Fearghus, son of Nellin, of which was said:

Feimhin, while he was king,

Was not a place without bravery,

Today dark red its aspect,

Being set on fire by Ainmire, son of Seadna.