Why is Dafydd ap Gwilym important in the history of Welsh poetry?

Dafydd ap Gwilym is considered one of the most significant figures in Welsh literature because he transformed the formalistic bardic tradition by introducing a level of authenticity, freshness, and naturalness that had not been seen before.1

His importance is defined by several key contributions:

• Establishment of the cywydd: While he may not have invented the cywydd—a poem composed of seven-syllable rhyming couplets—he established it as the leading poetic form.2
• Modernization of Language: By cultivating a simplicity of diction within his work, he moved away from the archaic, esoteric vocabulary of the earlier gogynfeirdd (poets of the princes). In doing so, he effectively set the standards for modern Welsh.2
• Thematic Innovation: He expanded the scope of Welsh poetry by incorporating themes often borrowed from the wandering minstrels and trouvères of France. He is particularly celebrated for his elaborate, sensitive descriptions of nature and his love poetry.12

His work bridged the gap between the declining courtly bardic system and a new era of poetry, profoundly influencing succeeding generations of Welsh poets.12