Llywarch ap Llywelyn (fl. 1173–1220) was an important medieval Welsh poet. He is also known by his bardic name, "Prydydd y Moch" ("poet of the pigs"). Llywarch was a poet at the court of the kingdom of Gwynedd in the reigns of Dafydd ab Owain Gwynedd and Llywelyn ab Iorwerth, and he is known for a number of awdlau in praise of his lord. One of Llywarch's successors in the court of Gwynedd was the poet Dafydd Benfras, who may possibly have been his son. He was a very nationalistic poet, and his fervent support for Llywelyn's policy of uniting Wales was a prominent element of his poetry. Source: Wikipedia (en)