Due to Ingvar's convincing persuasion the Semigallians and Swedes reached an agreement. Three tribal Semigallian chieftains, however, refused to pay the tributes and armed their troops to banish the Swedes. A war followed the which Swedes won after lethal battles. The Semigallian king provided Anumnd Jacob and Ingvar with soldiers to defeat the rebels, and the most rebellious Semigallian leader was captured and hanged. The two other chieftains escaped. The Vikings or Swedes took plenty of gold, silver and precious things from the Semigallian rebels after the war. Ingvar became the most powerful chief in Sweden after the king. Olof Skötkonung received the tribute from the Semigallians after the war. A major Swedish Viking expedition to the east led by Ingvar occurred around 1040 and is mentioned on a large number of rune stones from Central Sweden. Judging from the inscriptions the enterprise ended up in Serkland (the Muslim lands to the southeast of Russia), apparently under disastrous circumstances. A late Icelandic saga contains all sorts of fantastic details about the expedition. Death and succession Anund Jacob's reign has traditionally been dated from 1022 to approximately 1050, but there is uncertainty about the year he died. He was probably alive in 1049, since Adam places his death after the death of the Danish prince Bjørn, an earl in England, in that year; his half-brother and successor Emund is certain to have ruled Sweden in the summer of 1060. According to Adam of Bremen, Anund Jacob was married to a certain Gunhild who might previously have been the wife of Sven Estridsen. Adam does not suggest that they had any children, but a later chronicler Saxo Grammaticus (c. 1200) says that Sweyn Estridsen's spouse Gyda was a daughter of the Swedish king, by implication Anund Jacob. It has been suggested by Birger Nerman and others that King Anund Jacob was buried where King Ane's Stone is located in West Gothland. Two skalds are known to have served Anund Jacob: Sighvatr Þórðarson and Óttarr svarti. The Hervarar saga'' from the 13th century concludes with a chronicle of the Swedish kings which briefly epitomizes Anund Jacob's reign: Notes and references External links 11th-century births 1050 deaths 11th-century Swedish monarchs Medieval child monarchs House of Munsö Sons of kings Year of birth uncertain