Eric "XI" of Sweden, or Eric the Lisp and LameSwedish: Erik Eriksson läspe och halte; Old Norse: Eiríkr Eiríksson (1216 – February 2, 1250) was king of Sweden in 1222–1229 and 1234–1250.

Eric was the son of King Erik X of Sweden and Rikissa of Denmark, the daughter of King Valdemar I of Denmark. According to the chronicle Erikskrönikan written in the early 1320s, Eric is said to have been partly lame. Eric was born after his father, King Eric X, had already died, and in the meantime the fifteen-year-old John I of Sweden from the rival House of Sverker had been hailed king by the Swedish aristocracy, against the will of the Pope, who preferred Eric as king.

Referring to Eric Ericson as King Eric XI is a later invention, counting backwards from Eric XIV (1560–68). He and his brother Charles IX (1604–1611) adopted numerals according to a fictitious history of Sweden. The amount of Swedish monarchs named Eric before Eric XIV (at least seven) is unknown, going back into prehistory, and none of them used numerals. It would be speculative to try to affix a mathematically accurate one to this king.

Sweden (ⁱ/ˈswiːdən/ SWEE-dən; Swedish: Sverige [ˈsværjɛ] ( listen)), officially the Kingdom of Sweden (Swedish:  Konungariket Sverige (help·info)), is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland, and is connected to Denmark by a bridge-tunnel across the Øresund.

At 450,295 square kilometres (173,860 sq mi), Sweden is the third largest country in the European Union by area, with a total population of about 9.4 million. Sweden has a low population density of 21 inhabitants per square kilometre (54 /sq mi) with the population mostly concentrated to the southern half of the country. About 85% of the population live in urban areas. Sweden's capital city is Stockholm, which is also the largest city.

Sweden emerged as an independent and unified country during the Middle Ages. In the 17th century, the country expanded its territories to form the Swedish Empire. The empire grew to be one of the great powers of Europe in the 17th and early 18th century. Most of the conquered territories outside the Scandinavian Peninsula were lost during the 18th and 19th centuries. The eastern half of Sweden, present-day Finland, was lost to Russia in 1809. The last war in which Sweden was directly involved was in 1814, when Sweden by military means forced Norway into a personal union. Since then, Sweden has been at peace, practicing "non-participation in military alliances during peacetime and neutrality during wartime". However, Sweden has been a member of the European Union since 1 January 1995 and is a member of the OECD.

Eric XIV, Swedish: Erik XIV (13 December 1533 – 26 February 1577) was King of Sweden from 1560 until he was deposed in 1568. Eric XIV was the son of Gustav I (1496–1560) and Catherine of Saxe-Lauenburg (1513–35). He was also ruler of Estonia, after its conquest by Sweden in 1561.

While he has been regarded as intelligent and artistically skilled, as well as politically ambitious, early in his reign he showed signs of mental instability, a condition that eventually led to insanity. Eric suffered from schizophrenia. Some scholars claim that his illness began early during his reign, while others believe that he became sick after the Sture Murders.

Eric, having been deposed and imprisoned, was most likely murdered. An examination of his remains in 1958 confirmed that he probably died of arsenic poisoning.

Eric XIV was born at Tre Kronor castle, at 9 o'clock on the morning of 13 December 1533. Before the age of two, he lost his mother. In 1536, his father, Gustav Vasa, married Margaret Leijonhufvud (1516–55), a Swedish noblewoman.

Eric Wagner (born April 23, 1959) is an American heavy metal singer who is best known for his work with doom metal band Trouble, which he formed in 1979 when he was 20 years old. He briefly left Trouble in the mid-nineties and formed Lid with guitarist Danny Cavanagh, resulting in 1997's In The Mushroom. Wagner rejoined Trouble in 2000, after his replacement Kyle Thomas was dismissed from the band. He appeared on Dave Grohl's heavy metal side project Probot in 2004.

On May 2, 2008 it was announced via the official Trouble website that Wagner had left the band again because "at this moment in time I just can't handle touring anymore." His replacement was named as ex-Warrior Soul frontman Kory Clarke.

Most recently, Wagner has been recording under the band name Blackfinger. He also recently formed The Skull, a spin-off band featuring the other two former members of Trouble, bassist Ron Holzner and drummer Jeff "Oly" Olson.

Xi Enting is a male former table tennis player from China. From 1972 to 1975 he won several medals in singles, doubles, and team events in the Asian Table Tennis Championships and in the World Table Tennis Championships.