
1) Celtic mythology
Found on
https://www.crosswordclues.com/clue/daolghas

In Irish mythology, Daolghas was a man described in a late medieval tale who impregnated his daughter supernaturally. ==Story== The Irish hero Fionn mac Cumhail`s story was told in the Feis Tighe Chonáin [English: The Feast at Conán`s House]. In the story, Fionn and his warrior band were hunting but he and Diorraing were separated at nightfall.....
Found on
http://en.wikipedia.org/wiki/Daolghas
No exact match found.