Much of Welsh language poetry has, until quite recently, been composed in various forms of strict metre (canu caeth), latterly with the encouragement of the eisteddfod movement. The following list is as inclusive as possible for the years prior to 1600. It includes as many minor poets as possible to illustrate the range and content of Welsh poetry throughout the ages. However much early poetry has been lost, and much medieval verse is either anonymous or, usually in the case of mythological poems and prophetic verse, attributed to the 6th-century poet Taliesin or the mythical figure of Myrddin. Early religious and gnomic verse is also usually anonymous. Where possible examples of each poet's surviving work is presented at Welsh Poetry at Wikisource
Each period of the poets listed below is accompanied by a graphical timeline to illustrate the main events and individuals that influenced the poets and their work. These timelines also depict the development of the Welsh language. Further details of its development may be found at Welsh language.
No works by Welsh poets prior to the 6th century have survived. Tradition records:
The bulk of surviving verse from the period known as "Canu'r Bwlch" is anonymous.(see Wikisource)
The works of the following poets, belonging to the Hengerdd or Cynfeirdd period, are extant and accepted as probably genuine:
The following works are probably apocryphal:
Four others are named by Nennius as poets of renown alongside Taliesin and Aneirin:
The following group of court poets used to be called the Gogynfeirdd and are now generally referred to as "Beirdd y Tywysogion", the Poets of the Princes. The list is roughly chronological.
The poets of this period are known as Beirdd yr Uchelwyr. The list is fairly chronological but not exhaustive as the work of some minor poets of the late 15th and 16th centuries remains in manuscript and a large corpus of late medieval Darogan, prophetic verse, is anonymous or attributed to early poets. Traditional patronage dwindled in the late 16th century but a handful of bards still received patronage from the gentry into the 17th century. Free verse by individuals composing "freelance" gradually took over from the mid-16th century onwards.
Most of the earlier poets here are very much in the Beirdd yr Uchelwyr tradition. Traditional patronage dwindled in the late 16th century but a handful of bards still received patronage from the gentry into the 17th century. Free verse by individuals composing "freelance" gradually took over from the mid-16th century onwards. The free verse and strict metre poets sit rather uneasily together in this list.