Halldórr skvaldri was an Iceland

Iceland

Iceland , described as the Republic of Iceland, is a Nordic and European island country in the North Atlantic Ocean, on the Mid-Atlantic Ridge. Iceland also refers to the main island of the country, which contains almost all the population and almost all the land area. The country has a population...

ic skald

Skald

The skald was a member of a group of poets, whose courtly poetry is associated with the courts of Scandinavian and Icelandic leaders during the Viking Age, who composed and performed renditions of aspects of what we now characterise as Old Norse poetry .The most prevalent metre of skaldic poetry is...

 who lived in the first half of the 12th century.

He sang the Útfarardrápa about the feats of Sigurd I of Norway

Sigurd I of Norway

Sigurd I Magnusson , also known as Sigurd the Crusader , was King of Norway from 1103 to 1130. His rule, together with his brother Eystein I of Norway , has been regarded by historians as a golden age for the medieval Kingdom of Norway...

 during his voyage to the Holy Land. After Sigurd's death, he probably served Magnus Barefoot.

He made poems for nine powerful men, including the Swedish jarls Sone Ivarsson (c. 1107), Karl Sönason (c. 1137) and for the Swedish kings Sverker I of Sweden

Sverker I of Sweden

Sverker I or Sverker the Elder was King of Sweden from about 1130 till his death.-Biography:Sverker was a mighty landowner from Östergötland...

 (c. 1150) and Jon Jarl

Jon Jarl

Jon Jarl was a legendary Swedish jarl at the end of the 12th and in the early 13th centuries. He is mentioned in Eric's Chronicle from the 1320s to have spent years fighting against Russians and Ingrians in the early Swedish-Novgorodian Wars...

.