 Eadric and his cousin Siward ranked as the wealthiest thegns in Shropshire.Accounts of Eadric's act of rebellion in Herefordshire in 1067 are included in Manuscript D the "Anglo-Saxon Chronicle", John of Worcester's "Chronicle" and Orderic Vitalis.After the Conquest of England by William of Normandy, Eadric refused to submit and therefore came under attack from Norman forces based at Hereford Castle, under Richard fitz Scrob.