Oswald St. King of Northumbria and martyr c605-642. Exiled to Iona in 616 by Edwin taking Northumbria. After Edwin was defeated by Caeadwallon, Oswald returned to take back his Kingdom. At the Battle of Heavenfield nr Hexham Oswald defeated Caedwallon. Oswald re-established Christianity in Northumbria and called for Aidan from Iona to evangelise Northumbria. Oswald was killed and martyred in battle by the pagan King Penda of the Mercians. Feast Day August 9.