it is told that the De Danaan arrived on the shores of Irel… Twetch · April 15, 2021 it is told that the De Danaan arrived on the shores of Ireland with four treasures that were sacred to their race. The Sword of Nuada, the Lance of Lugh, the Cauldron of the Dagda, and the Stone of Manannan Mac Lir, or stone of Fal.