Title: Yny lhyvyr hwnn
Content:  Yny lhyvyr hwnn (In this book) was the first book to be printed in the Welsh language. It was written by Sir John Price of Brecon, a nobleman and secretary of the Council of Wales and the Marches. He was one of the most important Welsh manuscript collectors of his time, after the dissolution of the monasteries. The publication's main objective was to correct the lack of material, and specifically, the lack of religious material, available in the Welsh language. As Yny lhyvyr hwnn was a humanist venture with the aim to put into print the literary heritage of Wales, Price also included an ABC section and the first Welsh printed alphabet. A record of English, European and Welsh Saints was added, as well as a monthly forecast for agricultural purposes. The last section of the pamphlet is a comprehensive religious text. These subjects dominated many early Welsh publications. Yny lhyvyr hwnn was printed in London by Edward Whitchurch in 1546. The National Library of Wales holds the only known copy. It was part of the foundation collection donated by Sir John Williams to the Library in 1908.
Title: Llywelyn Goch ap Meurig Hen
Content:  Llywelyn Goch ap Meurig Hen (fl. c. 1350-1390) was a Welsh language court poet from Merionethshire, in the north west of Wales. Llywelyn is credited, along with Iolo Goch, with introducing and popularizing the cywydd metre in the north of Wales. Llywelyn is particularly noted for his elegy to his dead mistress, 'Marwnad Lleucu Llwyd' (Elegy for Lleucu Llwyd).
Title: Llywelyn Siôn
Content:  Llywelyn Siôn (1540 – c.1615) was a Welsh language poet. Although remembered as a poet, he was also a professional manuscript copyist. Iolo Morganwg claimed he was the author of Cyfrinach Beirdd Ynys Prydain, used by the Welsh Gorsedd, but it is now known that Iolo himself was the author of that work. Additionally, the work known as Barddas was attributed to him when it was published, but was later revealed to have been based on manuscripts forged by Morganwg.
Title: Llywarch Hen
Content:  Llywarch Hen (, "Llywarch the Old"; c. 534 – c. 608), was a prince and poet of the Brythonic kingdom of Rheged, a ruling family in the Hen Ogledd or "Old North" of Britain (modern southern Scotland and northern England). Along with Taliesin, Aneirin, and Myrddin, he is held to be one of the four great bards of early Welsh poetry. Whether he actually wrote the poems attributed to him is unknown, and most of what is known about his life is derived from early medieval poems which may or may not be historically accurate.
Title: 1546 in literature
Content: Sir John Prise of Brecon (anonymously) – Yn y lhyvyr hwnn (first book printed in Welsh) ; François Rabelais – Le Tiers Livre 
Title: Englyn
Content:  Here are two englynion by the twelfth-century Welsh poet Cynddelw Brydydd Mawr: "Balch ei fugunawr ban nafawr ei lefPan ganer cyrn cydawr;Corn Llywelyn llyw lluydfawrBon ehang blaen hang bloed fawr. Corn wedi llad corn llawen Corn llugynor Llywelyn Corn gwyd gwydr ai can Corn rueinell yn ol gellgwn" The poet Robert Graves wrote an englyn in English, included in the Juvinalia (1910 - 1914) of his Complete Poems "A Pot of White HeatherThou, a poor woman's fairing, white heather,Witherest from the endingOf summer's bliss to the stingOf winter's grey beginning." Here is an English-language englyn by novelist Robertson Davies. "The Old JournalistHe types his laboured column—weary drudge!Senile, fudge and solemn;Spare, editor, to condemnThese dry leaves of his autumn." Grace in the form of an englyn (with cynghanedd shown) in a poem by W. D. Williams:
Title: Robin Llywelyn
Content:  Robin Llywelyn (born 24 November 1958) is a Welsh novelist, writing in both Welsh and English. His works include From Empty Harbour to White Ocean, winner of the National Eisteddfod Prose Medal. He is also the managing director of Portmeirion Ltd which runs the Italianate village of Portmeirion built by his grandfather Sir Clough Williams-Ellis. Llywelyn was born in Llanfrothen and was educated at University of Wales, Aberystwyth, where he studied Welsh and Irish. Llywelyn has written three novels in Welsh; Seren Wen ar Gefndir Gwyn (1992), which won the 1992 National Eisteddfod of Wales prose medal and the Arts Council of Wales Book of the Year Award; O'r Harbwr Gwag i'r Cefnfor Gwyn (1994), winner of the 1994 Eisteddfod of Wales Prose Medal and BBC Writer of the Year Award; and Un Diwrnod yn yr Eisteddfod (2004).
Title: The Children of Llyr
Content:  The Children of Llyr is a fantasy novel by American writer Evangeline Walton, the second in a series of four based on the Welsh Mabinogion. It was first published in paperback by Ballantine Books as the thirty-third volume of the Ballantine Adult Fantasy series in August, 1971. It has been reprinted a number of times since, and gathered together with Walton's other Mabinogion novels by Overlook Press as the omnibus The Mabinogion Tetralogy in 2002. The novel has also been published in translation in several European languages. The other three novels in the series are The Island of the Mighty (1936), The Song of Rhiannon (1972), and Prince of Annwn (1974). The novel is a retelling of the story of the Second Branch of the Mabinogion, Branwen Ferch Llŷr (Branwen, Daughter of Llŷr).
Title: Gweneth Lilly
Content:  Winter Of Stones), Hwyl A Helynt Calan Gaeaf (English: The Way Of The Season Of Winter) and the supernatural work Hwyl A Helynt Calan Gaeaf (English: The Way Of The Season Of Winter). Lilly won the Tir na n-Og Award in the same year. Throughout the year of the 700th anniversary of Llywelyn ap Gruffudd's death in 1982, she was commissioned to author the novel Rwy'n Cofio dy Dad to commemorate the occasion. Lilly went on to write the children's and teenage book Y Gragen A'r Drych (English: The Shell And The Mirror) that same year. She received her second Tir na n-Og Award in 1982. In 1984 and 1987 respectively, Lilly authored Britain, Orpheus the 
Title: The Castle of Llyr
Content:  The Castle of Llyr (1966) is a high fantasy novel by Lloyd Alexander, the third of five volumes in The Chronicles of Prydain. The story continues the adventures of Taran, the "Assistant Pig-Keeper", and his companions. Princess Eilonwy, the latest enchantress to be born of the House of Llyr, "faces the unavoidable (and in her view absolutely unnecessary) ordeal of becoming a young lady." The young hero Taran accompanies her on her journey to the royal court of the Isle of Mona, the same island where her ancestral home was located, and where she will continue her education as a princess. Soon after her arrival, she is kidnapped by agents of the evil sorceress Achren, who wishes to use her for as part of a plan for domination. During the adventure, more is revealed of Eilonwy's heritage and her family's former home, the castle Caer Colur.

Question: Who is the author of Yny lhyvyr hwnn?
Answer: John Prise.
John Price.
John Prys.