was induced to repair
to the place of meeting, where after three days' labour in a cell he
produced a treatise in writing in which the tenets of Morgan were so
triumphantly overthrown that the convocation unanimously adopted it and
sent it into the world with a testimony of approbation as an antidote to
the heresy, and so great was its efficacy that from that moment the
doctrines of Morgan fell gradually into disrepute. {16}

Dewi shortly afterwards became primate of Wales, being appointed to the
see of Minevai or Mynyw, which from that time was called Ty Ddewi or
David's House, a name which it still retains amongst the Cumry, though at
present called by the Saxons Saint David's. About five centuries after
his death the crown of canonization having been awarded to Dewi, various
churches were dedicated to him, amongst which was that now called Llan
Ddewi Brefi, which was built above the cell in which the good man
composed his celebrated treatise.

If this secluded gorge or valley is connected with a remarkable
historical event it is also associated with one of the wildest tales of
mythology. Here according to old tradition died one of the humped oxen
of the team of Hu Gadarn. Distracted at having lost its comrade, which
perished from the dreadful efforts which it made along with the others in
drawing the afanc hen or old crocodile from the lake of lakes, it fled
away from its master, and wandered about, till coming to the glen now
called that of Llan Ddewi Brefi, it fell down and perished after
excessive bellowing, from which noise the place probably derived its name
of Brefi, for Bref in Cumbric signifies a mighty bellowing or lowing.
Horns of enormous size, said to have belonged to this humped ox or bison,
were for many ages preserved in the church.

Many will exclaim who was Hu Gadarn? Hu Gadarn in the Gwlad yr Haf or
summer country, a certain region of the East, perhaps the Crimea, which
seems to be a modification of Cumria, taught the Cumry the arts of
civilised life, to build comfortable houses, to sow grain and reap, to
tame the buffalo and the bison, and turn their mighty strength to
profitable account, to construct boats with wicker and the skins of
animals, to drain pools and morasses, to cut down forests, cultivate the
vine and encourage bees, make wine and mead, frame lutes and fifes and
play upon them, compose rhymes and verses, fuse minerals and form them
into various instruments and weapons, and to m