Title: Eric Anundsson
Content:  earth-bulwarks, ramparts, and other great works which he made are to be seen. And, moreover, he was not so proud that he would not listen to people who had anything to say to him. He is given as the son of Anund Uppsale in the Hervarar saga (13th century):   However, the Eric who was contemporary with Harald Fairhair is called Eymundsson by Snorri Sturluson. Since the preceding king Anund is often identified with an Anund who flourished in the 840s and is mentioned by other sources (Rimbert and Adam of Bremen), Anundsson is probably the correct form of the patronym. The names Eymund and Anund were equivalent enough for the later king Anund Jacob to be called Emund (Eymund), in the Westrogothic law. Consequently, Eric's patronym would not be the only instance 
Title: Eric Anundsson
Content: Eiríkr hét sonr Önundar konungs, er ríki tók eptir föður sinn at Uppsölum; hann var ríkr konungr. Á hans dögum hófst til ríkis í Noregi Haraldr hárfagri, er fyrstr kom einvaldi í Noreg sinna ættmanna. Eric was the son of king Anund, and he succeeded his father at Uppsala; he was a rich king. During his reign, Harald Fairhair came to power in Norway, Harald was the first of his kin to reign as a monarch in Norway. My grandfather Thorgny could well remember the Uppsala king Eirik Eymundson, and used to say of him that when he was in his best years he went out every summer on expeditions to different countries, and conquered for himself Finland, Kirjalaland, Courland, Estonia, and the eastern countries all around; and at the present day 
Title: Eric Anundsson
Content:  Eric Anundsson or Eymundsson was a semi-legendary Swedish king who supposedly ruled during the 9th century. The Norse sagas describe him as successful in extending his realm over the Baltic Sea, but unsuccessful in his attempts of westward expansion. There is no near-contemporary evidence for his existence, the sources for his reign dating from the 13th and 14th centuries. These sources, Icelandic sagas, are generally not considered reliable sources for the periods and events they describe. Controversially, older Swedish historians have identified Eric with another legendary Swedish king, Erik Weatherhat, who is mentioned in some medieval king-lists as the predecessor of Eric the Victorious. However, Saxo Grammaticus identifies Erik Weatherhat with another figure, a son of the legendary Viking Ragnar Lodbrok.
Title: Anund
Content:  In his Ynglinga saga, Snorri Sturluson relates that Anund succeeded his father King Yngvar who fell in battle with the Estonians. After his father's wars against Danish Vikings and Estonian Vikings, peace reigned over Sweden and there were good harvests. Anund was a popular king who became very rich, not only because of the peace and the good harvests but also because he avenged his father in Estonia. That country was ravaged far and wide and in the autumn Anund returned with great riches. In those days Sweden was dominated by vast and uninhabited forests, so Anund started making roads and clearing land and vast districts were settled by Swedes. Consequently, he 
Title: Hakon Sunnivasson
Content:  Hakon Sunnivasson (Hakon Jyde, "from Jutland") was a Danish nobleman and the father of King Eric III of Denmark.
Title: Eric Anundsson
Content:  The Flateyjarbók (late 14th century) has a different account about Eric Anundsson. It says that Björn at Haugi was king when Harald Fairhair became king in Norway. His successor Anund then ruled for at least 40 years, being succeeded by his son Eric who ruled for 47 years. Eric married Ingigerd, a daughter of Harald Fairhair. After some time she was to be sacrificed to the gods for unspecified reasons. The Swedes, therefore, brought the queen to an island where the blót would take place. She was however rescued by her brother Halfdan the Black (Junior) and brought to safety. This incident provoked long-time hostilities between Harald and Eric. Later on, Harald's trustee Hauk Håbrok went to Holmgard in Kievan Rus' to make purchases but had an adventurous confrontation with two champions of Eric who stayed there. A saga about Harald Fairhair's skalds also mentions a Swedish King Eric who was Harald's enemy; he is however given the patronym "Björnsson".
Title: Eric Anundsson
Content:  the two names were confused. According to Hervarar saga, he was preceded by his father Anund Uppsale and uncle Björn at Hauge, and later on succeeded by Björn (the father of Eric the Victorious and Olof Björnsson). Landnámabók informs that Eric and his son Björn ruled during the time of the Pope Adrian II and Pope John VIII, i.e. in the period 867–883, the time of the first settlement of Iceland. Harald Fairhair's saga relates that Erik died when Harald Fairhair had been king of all Norway for ten years. Traditionally this would indicate 882, but Harald's ascent to power is nowadays believed to have occurred later, in the 880s or c. 900. Erik is mentioned in several places in the Heimskringla. In the saga of Olaf Haraldsson, Thorgny Lawspeaker relates:
Title: Anund
Content:  he was murdered by his brother Sigvard in Himinherthy (which the source says means "the fields of the sky", cœli campus. Such a place name is not known and Swedish archaeologist Birger Nerman (1888–1971) suggests that the original place of death was under the sky mountains, i.e. under the clouds (cf. the etymology of cloud). Consequently, he may have been killed outdoors, by his brother and with a stone. Thorsteins saga Víkingssonar says that Anund was not the son of Ingvar, but Östen. It also relates that he had a brother named Olaf who was the king of Fjordane. All sources say that Anund was the father of Ingjald (Ingjald Illråde).
Title: Terra Feminarum
Content:  According to Gesta, Anund was the son of King Emund the Old who ruled Sweden 1050-60 AD. Anund's death in Woman Land led into a long-lasting internal chaos in Sweden, as Emund died without an heir apparent and so did the House of Munsö, the last branch of the Yngling family.
Title: Anund Uppsale
Content:  The Hervarar saga recounts that Anund and his brother Björn succeeded king Erik Refilsson, their cousin. This happened about two generations before the reign of Harald Fairhair of Norway (c. 872-930). The two brothers shared the realm, so that Anund resided in Uppsala while Björn made his residence at Haugi ("the Barrow"). His son Erik succeeded him on the Swedish throne. A Norwegian document from the early 14th century provides a few additional details. A certain Herjulf Horn-breaker was the standard-bearer of King Halfdan the Black of Vestfold in Norway, the father of Harald Fairhair. However, Herjulf fell out with his lord and escaped to Sweden where he was well received by King Anund. After a while he evoked the wrath of his new master as well, since he slept with Anund's kinswoman Helga. Once again, he was forced to flee, bringing Helga with him. The couple eventually settled in the then uninhabited Härjedalen. The document enumerates their descendants for 15 generations. This account is at least partly a construction, since Herjulf Horn-breaker is otherwise known as a pioneer settler in Iceland.

Question: Who is the father of Eric Anundsson?
Answer: Anund Uppsale.