Olav Magnusson of Norway

Olaf Magnusson (1099-1115) was king of Norway 1103-1115. He was the son of King Magnus Barefoot.

Olaf became king together with his brothers Sigurd Jorsalfar and Øystein Magnusson when his father Magnus Barefoot died in 1103. Since he was still very young, his older brothers acted as regents for his part of the kingdom.

In 1115, Olaf fell ill and died 22 December. He was succeeded by his co-ruler brothers. His historical insignificance is shown by the fact that later historians, when constructing ordinals for Norwegian monarchs, left Olaf out from numbering - he would have been Olaf IV but that ordinal is used for Olaf IV of Norway who reigned over two and a half centuries later.

The late Olav V of Norway (d 1991) who clearly reigned using the official ordinal, would have been Olav VI, had this child co-king been numbered.