Ellis Humphrey Evans, known by his bardic name Hedd Wyn, was killed on the first day of the battle of Passchendaele. Chronicle/Alamy January 11, 2024 Hedd Wyn: how the life of one of Wales’ most promising poets was cut short by the first world war Alan Llwyd, Swansea University Bard Hedd Wyn was killed in action in France in 1917.