Aldfrith, king of Northumbria (or 705)
Aldfrith (Early Modern Irish: Flann Fína mac Ossu; Latin: Aldfrid, Aldfridus; died 14 December 704 or 705) was king of Northumbria from 685 until his death. He is described by early writers such as Bede, Alcuin and Stephen of Ripon as a man of great learning. Some of his works and some letters written to him survive. His reign was relatively peaceful, marred only by disputes with Bishop Wilfrid, a major figure in the early Northumbrian church.

Aldfrith was born on an uncertain date to Oswiu of Northumbria and an Irish princess named Fín. Oswiu later became King of Northumbria; he died in 670 and was succeeded by his son Ecgfrith. Aldfrith was educated for a career in the church and became a scholar. However, in 685, when Ecgfrith was killed at the battle of Nechtansmere, Aldfrith was recalled to Northumbria, reportedly from the Hebridean island of Iona, and became king.

In his early-8th-century account of Aldfrith's reign, Bede states that he "ably restored the shattered fortunes of the kingdom, though within smaller boundaries". His reign saw the creation of works of Hiberno-Saxon art such as the Lindisfarne Gospels and the Codex Amiatinus, and is often seen as the start of Northumbria's golden age.