Tregalan, [473], [476].

Tregan Anthrod, &c., 208, 218, 219: see Caer Arianrhod.

Tregaranthreg, 207, 208.

Tregaron, [577].

Tremadoc, [443].

Tremains, 354.

Tre’r Ceiri, 214, 279, 280, 283, [686].

— Gwyđelod, [566].

Tretower, [516], [518].

Trevine, Trefin, 165, 171.