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Iago ap Ieuan was the bardic name of James James, a Welsh poet and clergyman. He was born in Llansilin, Denbighshire in 1730 and died in Denbigh in 1803. He was a prolific poet and wrote in both Welsh and English. His work is characterized by its simplicity and directness, and he is considered one of the most important Welsh poets of the 18th century.