On the invasion of William, as we have seen, it was in the possession of Edwin, sovereign of Deira.
The name of Deira sounded to Gregory's ears like two Latin words, which mean "from wrath."
"Deira" (the land between the Tees and the Humber), said the merchant.
Danish Northumbria or Deira comprised the lands to the west of the Pennines.
As the eldest scion of the house of Deira, the usurper thirsted for his blood.