Llefelyss

Llefelyss is a figure from Welsh mythology, primarily appearing in the Mabinogion, a collection of medieval Welsh prose tales. He is most notably associated with the tale of "Branwen ferch Llŷr," where he plays a pivotal role in the events leading to conflict and suffering.

Llefelyss is the son of the sea god Llŷr and is brother to Bran the Blessed and Branwen. His lineage connects him to the powerful royal families of Wales. In the story, Llefelyss is known for his wisdom and his considerable influence.

A key event involving Llefelyss is his involvement in a dispute between Branwen and her husband, Matholwch, King of Ireland. After Matholwch mistreats Branwen, Llefelyss is instrumental in organizing a retaliatory expedition against Ireland. He is responsible for devising the means by which the Welsh army is to cross the sea to Ireland, utilizing a magical cauldron that can resurrect the dead, albeit imperfectly.

Llefelyss's actions, though aimed at avenging his sister, ultimately contribute to the devastating war that ensues, resulting in the deaths of many and the destruction of both the Welsh and Irish armies. He survives the conflict and plays a role in the aftermath, helping to establish peace and order in the wake of the tragedy. His character embodies the complexities of family loyalty and the far-reaching consequences of conflict within the rich tapestry of Welsh mythology.