At Ulfreksfjord in 1018, a combined force of native Irish, led by a king called Conchobar, and their Norse allies, led by Eyvind Urarhorn, defeated a major Viking expedition launched by the Earl of Orkney, Einar Sigurdsson, who was aiming to re-assert his father's lordship over the seaways between Ireland and Scotland. In 1022, Niall mac Eochaid, the king of Ulaid, inflicted a major defeat on Sigtrygg's Dublin fleet, decimating it and taking its crew captive. Niall followed up this victory in 1026 attacking Finn Gall, a Viking settlement just north of Dublin itself.