Ragnall ua ÃÂmair (died 1035), also known as Ragnall mac Ragnaill, was an eleventh-century King of Waterford. He appears to have ruled as king from 1022 to 1035, the year of his death.
Ragnall seems to have been a descendant of ÃÂmar, King of Waterford. Ragnall's father may have been Ragnall mac ÃÂmair, King of Waterford. Such a relationship would indicate that the patronym ua ÃÂmairâÂÂaccorded to Ragnall by the Irish Annals that note his deathâÂÂrefers to Ragnall mac ÃÂmair's father, the aforesaid ÃÂmar.
Very little is known of the Waterfordian kingship in the early eleventh century. ÃÂmar died in 1000. His son, the aforesaid Ragnall mac ÃÂmair, died as king in 1018. Another son of ÃÂmar, Sitriuc mac ÃÂmair, King of Waterford was slain by the King of Osraige in 1022. An apparent brother of Ragnall died in 1015. Ragnall himself appears to have ruled Waterford from 1022 to 1035. The seventeenth-century Annals of the Four Masters, the fourteenth-century Annals of Tigernach, and the fifteenth- to sixteenth-century Annals of Ulster reveal that, in 1035, Ragnall was slain by Sitriuc mac AmlaÃÂb, King of Dublin.
The following year, Sitriuc mac AmlaÃÂb was driven out of Dublin by Echmarcach mac Ragnaill. Whilst the parentage of the latter is uncertain, if he was a related to RagnallâÂÂperhaps as either a brother or sonâÂÂit could mean that Echmarcach's actions against Sitriuc mac AmlaÃÂb were undertaken in revenge for his death. Against this possibility is the fact that there is no evidence that Echmarcach, or his known family, had any connection with Waterford. Whatever the case, Ragnall's fall appears to have been an important benchmark in Waterford's history, and after this date the enclave increasingly fell prey to the machinations of the UàBriain and the UàCheinnselaig. In fact, two years after the killing, the King of Waterford was Cú Inmain ua Robann, an apparent Irishman.