Gruffudd Hiraethog (died 1564) was a 16th-century Welsh-language poet, born in Llangollen, north-east Wales.
[1] Gruffudd was one of the foremost poets of the sixteenth century to use the cywydd metre.
Though he was member of the medieval guild of poets and a notable upholder of that tradition, he was also closely associated with William Salesbury, Wales' leading Renaissance scholar.
[2] One of the first Welsh books to be published was Gruffudd's collection of proverbs in 1547, Oll synnwyr pen Kembero ygyd ("The sense of a Welshman's mind collected together").
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