The Cauldron of Rebirthappears in Branwen Daughter of Llyr

The cauldron given by Bran to Mathowlch of Ireland as a wedding gift. It has the power of restoring dead warriors to life, although the regenerated warriors lose the power of speech. It is shattered self-sacrificially by Efnisien, turning the battle in favour of the Welsh.

Twrch Trwyth appears in Culhwch and Olwen

A great magical boar who carries the scissors and comb needed by Ysbaddaden Chief Giant to groom himself for the wedding. He has poisoned bristles and lays realms waste. Obtaining his treasures is one of the tasks Culhwch and his helpers must perform to win the hand of Olwen.

Caer Llionappears in Gereint Son of Erbin, Peredur Son of Efrawg, The Lady of the

The site of Arthur's court.

Annwnappears in Pwyll Prince of Dyfed, Manawydan Son of Llyr, Math Son of Ma

The Celtic Otherworld...