One of the piglets of the boar Twrch Trwyth.
Llwydawg fought alongside Twrch Trwyth during the epic hunt, and killed many of Arthur’s warriors at Dyffryn Llwchwr.
Llwydawg himself was finally killed at Ystrad Yw, but not before the warriors Peissawg the Tall, Llygadrudd Emys, and Gwrfoddw (Gwrfoddu Hên) fell to his tusks.
Source
Culhwch and Olwen | Late 11th century
