* 1031 – Olaf II of Norway is canonized as Saint Olaf by Grimketel, the English Bishop of Selsey.

** Olaf II of Norway ( Translation of the relic )

* 1030 – Ladejarl-Fairhair succession wars: Battle of Stiklestad – King Olaf II fights and dies trying to regain his Norwegian throne from the Danes.

** Olaf II of Norway

* Olaf II, King of Norway

* February – Olaf II of Denmark becomes Olaf IV of Norway, with his mother Margaret as regent.

* Olaf II of Norway ( d. 1030 )

* July 29 – Battle of Stiklestad ( Norway ): Olaf II of Norway loses to his pagan vassals and is killed in the battle.

* July 29 – King Olaf II of Norway ( b. 995 )

* Olaf II of Norway is canonized as Saint Olaf.

* Aethelred II pays £ 16, 000 of Danegeld to Olaf Trygvasson.

* Gormlaith of Lienster, wife of Olaf Cuarran, Malachy II and Brian Boru

The dynastic plans called for her son, Olaf II to rule the three kingdoms, but after his early death in 1387 she took on the role herself ( 1387 – 1412 ).

In 1276, Magnus Barnlock allegedly married a second wife Haelwig, daughter of Gerard I of Holstein ( through her mother Elisabeth of Mecklenburg, she was a descendant of Christina, the putative daughter of Sweartgar II of Sweden and Queen Wolfhilda, she a descendant of Aestrith Olofsdotter, Queen of Norway and daughter of Olaf Scotking of Sweden ).

Detail on a pewter fork handle from Norway, showing three scenes: the Viking King Olaf II of Norway | Heilag Olav, His People, and a Viking ship

af: Olaf II van Denemarke

ca: Olaf Haakonsson

pl: Olaf Haakonsson

Henry was a rival of Olaf Haakonsson in regard to the Danish succession in 1375.

** Olaf IV of Norway / Olaf III of Denmark ( b. 1370 )

* August 23 – King Olaf IV of Norway / Olaf III of Denmark ( b. 1370 )

Olaf was hailed as king in Scania, including the towns controlled by the Hanseatic league since the Treaty of Stralsund in 1370.

Olaf 1370

* Olaf IV of Norway, king 1370 – August 23, 1387

* 1970 – Olaf Kölzig, African-German hockey player

* 1884 – Nils Olaf Chrisander, Swedish actor, film director ( d. 1947 )

* 1947 – Nils Olaf Chrisander, Swedish actor and director ( b. 1884 )

* 1862 – Olaf Frydenlund, Norwegian rifle shooter ( d. 1947 )

* 1873 – Olaf Gulbransson, Norwegian artist ( d. 1958 )

* 1965 – Olaf Backasch, German footballer

* 1958 – Olaf Gulbransson, Norwegian illustrator ( b. 1873 )

* March 27 – Olaf Malolepski, German musician ( Die Flippers )

* December 22 – Olaf M. Hustvedt, American admiral ( b. 1886 )

* June 23 – Olaf M. Hustvedt, American admiral ( d. 1978 )

* September 9 – Battle of Svolder: King Olaf Tryggvason is defeated by an alliance of his enemies, in this notable naval battle of the Viking Age.

* September 9 – Olaf I of Norway ( killed at the Battle of Svold ) ( b. 969 )

* August 18 – King Olaf I of Denmark

* August 22 – Olaf, King of Norway and Denmark and claimant to the throne of Sweden, dies.

After defeating a rival Norse king whose name is recorded in Old Irish documents as Amlaíb Cenncairech at Limerick in August 937, Olaf Guthfrithsson crossed the Irish Sea with his army to join the forces of Constantine and Owen, suggesting that the Battle of Brunanburh probably occurred in early October of that year.

Queen Josephine of Leuchtenberg of Norway and Sweden, the consort of Oscar I, asked for the one known remaining relic of St. Olaf, an ulna or radius in a medieval reliquary in the Danish National Museum, from King Frederick VII of Denmark, which he gave to her and which she in turn gave to St. Olaf's Cathedral ( Sankt Olav domkirke ) in Oslo in August 1862.

Olaf was canonised by Bishop Grimkell in Nidaros on 3 August 1031, and is remembered as Rex perpetuus Norvegiae, the Eternal King of Norway.

On August 11, 2004, St. Olaf College announced that it had decided to sell WCAL in order to enhance the institution's endowment.

St. Olaf announced in August that it had decided to sell to Minnesota Public Radio.

The End of the World () is a 1916 Danish science fiction drama film directed by August Blom and written by Otto Rung, starring Olaf Fønss and Ebba Thomsen.