A property ruled by King Brychan – whose wife, Gwladys, was abducted by Gwynnlyw and later lusted after by Arthur. These events are related in the Welsh Life of Saint Cadoc.
Note
“Brecknock” is often a reference to Brecknockshire, a historic county in Wales. The county is also known by its Welsh name, “Sir Frycheiniog.”
See also
Brycheiniog | The Legend of King Arthur
Source
Life of St. Cadoc | Lifris, late 11th century