Thomas Charles-Edwards is an emeritus academic at Oxford University. He formerly held the post of Jesus Professor of Celtic and is a Professorial Fellow at Jesus College.He was educated at Ampleforth College before reading History at Corpus Christi College, Oxford, where he studied for a doctorate after taking the Diploma in Celtic Studies under Sir Idris Foster. He held a Bergin Fellowship at the Dublin Institute for Advanced Studies from 1968 to 1969. He then was a Junior Research Fellow and then a Fellow in History at Corpus Christi College before being appointed to the chair of Celtic. His expertise is in the fields of the history and language of Wales and Ireland, during the so-called Irish Dark Age (during the Roman Empire) and the General “Dark Ages”, which followed the collapse of the Roman Empire in the west. He is a Fellow of the Royal Historical Society, a Fellow of the British Academy and a Founding Fellow of the Learned Society of Wales. He was elected honorary member of the Royal Irish Academy in 2007.