Ælfwine of Deira is the brother of a King of Northumbria that died in what year?
Ælfwine of Deira Ælfwine (c. 661–679) was the King of Deira from 670 to 679. He was a son of Oswiu of Northumbria and a brother of Ecgfrith of Northumbria.
Uhtred the Bold Uchtred or Uhtred, called the Bold, (d. 1016) was the ealdorman of all Northumbria from 1006 to 1016, when he was assassinated. He was the son of Waltheof I, ealdorman of Bamburgh, whose ancient family had ruled from the castle of Bamburgh on the Northumbrian coast.