Prydwen
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Prydwen is a ship in Arthurian legend. It plays a part in the early Welsh poem Preiddeu Annwfn, in which it bears King Arthur to the Welsh otherworld Annwn, while in Culhwch and Olwen, he sails in it on expeditions to Ireland. The 12th-century chronicler Geoffrey of Monmouth named Arthur's shield after it. In the early modern period Welsh folklore preferred to give Arthur's ship the name Gwennan. Prydwen has however made a return during the last century in several Arthurian works of fiction.