Drudwas ap Tryffin is a knight of King Arthur's court in early Arthurian mythology and the owner of the magical Adar Llwch Gwin.
Drudwas appears very briefly in the early Welsh tale Culhwch and Olwen, in which he is part of the long court list of Arthur's men.
His sister Erdudwyl appears as one of the golden-torqued women of Arthur's court, and goes on to play a pivotal role in Drudwas' demise.
The Trioedd y Meirch refer to Drudwas as the owner of one of the three bestowed horses of the isle of Britain[1] , while a later triad names him as one of the Golden-tongued knights of Arthur's court, alongside Eliwlod ap Madoc and Gwalchmai.
And the griffins snatched him up and slew him, and in the firmament of the sky they recognized him and descended to the earth making the most pitiful wailing, because they had slain their master Drudwas.