List of Famous people named Rognvaldr

Rǫgnvaldr Guðrøðarson ruled as King of the Isles from 1187 to 1226. He was the eldest son of Guðrøðr Óláfsson, King of Dublin and the Isles. Although the latter may have intended for his younger son, Óláfr, to succeed to the kingship, the Islesmen chose Rǫgnvaldr, who was likely Óláfr's half-brother. Rǫgnvaldr went on to rule the Kingdom of the Isles for almost forty years before losing control to Óláfr.

Rǫgnvaldr Óláfsson was a mid-thirteenth-century King of Mann and the Isles who was assassinated after a reign of less than a month. As a son of Óláfr Guðrøðarson, King of Mann and the Isles, Rǫgnvaldr Óláfsson was a member of the Crovan dynasty. When his father died in 1237, the kingship was assumed by Haraldr Óláfsson. The latter was lost at sea late in 1248, and the following year Rǫgnvaldr Óláfsson succeeded him as king.

Rǫgnvaldr Óláfsson was a twelfth-century King of the Isles. He was a son of Óláfr Guðrøðarson, King of the Isles and a member of the Crovan dynasty. In the 1153, Óláfr was assassinated by three nephews, before his son, Guðrøðr, was able to overcome them and succeed his father as king. By 1158, Guðrøðr was forced from power by his brother-in-law, Somairle mac Gilla Brigte, who was married to Óláfr's daughter Ragnhildr. In 1164, when Somairle was killed in an invasion of Scotland, and while Guðrøðr was away in exile overseas, Rǫgnvaldr briefly seized the kingship for himself, before being overcome by Guðrøðr, who had him blinded and mutilated.