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Kálfr Árnason
Norwegian chieftain
Years: 990 - 1051
Kálfr Árnason (c. 990 – 1051) is an 11th-century Norwegian chieftain who plays a major role both in defeating King Olaf Haraldsson (later named St. Olaf) at the Battle of Stiklestad and in bringing back his young son Magnus and raising him to the throne.
