Canton of Abertridwr
Abertridwr was apparently formed as a Canton, in about July 1988 (A.S. XXII), with Harek Ulfhednar as the inaugural Seneschal (source - http://www.florilegium.org/files/STORIES/Lochac-Chrnls-art.text) .
The King-that-was went under the hill at the meeting of three rivers. There they say he waits, sleeping, until the time of his people's greatest need, when he would come again.
Awake O King, for that time is now!
I call upon ye now O sleeper to rise, rise, rise! Summonst thou pencampwr and blow the horn of the red dragon! There are lands to conquer a plenty and merry times to be had!
Abertridwr Website: http://www.lochac.sca.org/abertridwr/