Matholwch

Matholwch, King of Ireland, is a character in the Second Branch of the Mabinogi, the tale of Branwen ferch Llŷr.

The story opens with Bran, King of Britain, sitting on a rock by the sea at Harlech and seeing the vessels of Matholwch approaching. Matholwch has come to ask for the hand of Bran's sister Branwen in marriage. Bran agrees to this, and a feast is held to clebrate the betrothal. While the feast is going on, Efnisien, a half-brother of Branwen and Bran, arrived and asked why there were celebrations. On being told, he was furious that his half sister had been given in marriage without his consent, and vented his spleen by mutilating Matholwch's horses. Matholwch was deeply offended, but was conciliated by Bran who gave him a magical cauldron which could bring the dead to life.

Once they were married, Matholwch treated Branwen cruelly and she was forced to work in the kitchens. Branwen tamed a starling and gave it a message to carry across the Irish Sea to Bran, who set out for Ireland to rescue her. When Matholwch saw the giant, he asked for peace and built a house big enough for him. Matholwch agreed to give the kingdom to Gwern, his son by Branwen. The Irish lords didn't like the idea, so they hid themselves in flour bags to attack the Welsh. Efnisien guessed what was happening and killed them by squeezing their heads inside the sacks, then threw Gwern into the fire.

In the ensuing war, all the Irish were killed save for five pregnant women who repopulated the island, while only seven of the Welsh survived to return home with Branwen, taking with them the severed head of Bran. On landing in Wales at Aber Alaw Branwen died of grief that so much destruction had been caused on her account.

Celtic mythology series
Welsh mythology
Texts and tales
Four Branches of the Mabinogi
  • Pwyll Pendefig Dyfed
  • Branwen ferch Llŷr
  • Manawydan fab Llŷr
  • Math fab Mathonwy
Arthurian
  • Culhwch ac Olwen
  • Preiddeu Annwfn
  • Iarlles y Ffynnon
  • Geraint ac Enid
  • Peredur fab Efrog
  • Breuddwyd Rhonabwy
  • Gereint filius Erbin
Other
  • Ystoria Taliesin
  • Cad Goddeu
  • Trioedd Ynys Prydain
  • Breuddwyd Macsen
  • Englynion y Beddau
  • Giant tales
  • Cyfranc Lludd a Llefelys
Characters
  • Afaon fab Taliesin
  • Amaethon
  • Arawn
  • Arianrhod
  • Arthur
  • Afallach
  • Beli Mawr
  • Bleiddwn
  • Blodeuwedd
  • Bedwyr
  • Bendigeidfran
  • Branwen
  • Cai
  • Caradog ap Bran
  • Caswallawn
  • Ceridwen
  • Cyledr Wyllt
  • Cigfa
  • Creiddylad
  • Culhwch
  • Cyhyraeth
  • Cynon
  • Dôn
  • Drudwas
  • Dylan ail Don
  • Dywel fab Erbin
  • Edern ap Nudd
  • Efnysien
  • Elen
  • Elffin ap Gwyddno
  • Eliwlod
  • Eufydd
  • Euroswydd
  • Geraint
  • Gilfaethwy
  • Glewlwyd Gafaelfawr
  • Goewin
  • Gofannon
  • Goreu fab Custennin
  • Gronw Pebr
  • Gwawl
  • Gwern
  • Gwrhyr
  • Gwyddno Garanhir
  • Gwydion
  • Gwyn ap Nudd
  • Gwythyr
  • Gwalchmei
  • Hafgan
  • Hefeydd
  • Hueil mab Caw
  • Hychddwn
  • Hyddwn
  • Iddog ap Mynio
  • Idris
  • Llefelys
  • Lleu
  • Llŷr
  • Lludd
  • Llwyd
  • Mabon
  • Madoc ap Uthyr
  • Macsen Wledig
  • Mallt-y-Nos
  • Manawydan
  • Math
  • Matholwch
  • Menw
  • Modron
  • Morfydd
  • Morfran
  • Nisien
  • Olwen
  • Penarddun
  • Penpingion
  • Peredur
  • Pryderi
  • Pwyll
  • Rhiannon
  • Saint Cyllin
  • Saint Eigen
  • Sanddef
  • Seithenyn
  • Taliesin
  • Tegid Foel
  • Teyrnon
  • Ysbaddaden
Animals and creatures
  • Adar Llwch Gwin
  • Adar Rhiannon
  • Afanc
  • Cavall (Cafall, Cabal)
  • Ceffyl Dŵr
  • Cewri
  • Coblynau
  • Coraniaid
  • Cŵn Annwn
  • Cyhyraeth
  • Dreigiau
  • Gwyllgi
  • Gwyllion
  • Llamhigyn y Dŵr
  • Morgens
  • Plentyn Newid
  • Pwca
  • Twrch Trwyth
  • Tylwyth Teg
Locations
  • Annwn
  • Abred
  • Gwynfyd
  • Ceugant
  • Cornwall (Celliwig)
  • Caer Sidi
  • Cantre'r Gwaelod
  • Dyfed (Arberth, Gwales)
  • Gwynedd (Aberffraw, Arfon, Ardudwy, Caer Dathyl)
  • Ireland
  • London (Ludgate)
Miscellaneous
  • Caledfwlch
  • Cauldron of rebirth
  • Llech Ronw
  • Thirteen Treasures of the Island of Britain