Given the question: Information: - Svein Knutsson ( Old Norse : Sveinn Knutsson ) c. 1016 -- 1035 , was the son of Cnut the Great , king of Denmark , Norway , and England , and his first wife lfgifu of Northampton , a Mercian noblewoman . In 1017 Cnut married Emma of Normandy , but there is no evidence that lfgifu was repudiated , and in 1030 Cnut sent her and Svein as regents to rule Norway . However , their rule was considered oppressive by the Norwegians , and they were expelled in 1034 . They imposed new taxes and harsh laws that made them unpopular . In William Shakespeare 's Macbeth , there is a character called '' Sweno , the Norways ' king '' based on Svein . - Encomium Emmae Reginae or Gesta Cnutonis Regis is an 11th-century Latin encomium in honour of Queen Emma of Normandy. It was written in 1041 or 1042 probably by a monk of St Omer. - Norway (; Norwegian: (Bokmal) or (Nynorsk); Sami: "Norgga"), officially the Kingdom of Norway, is a sovereign and unitary monarchy whose territory comprises the western portion of the Scandinavian Peninsula plus the island Jan Mayen and the archipelago of Svalbard. The Antarctic Peter I Island and the sub-Antarctic Bouvet Island are dependent territories and thus not considered part of the Kingdom. Norway also lays claim to a section of Antarctica known as Queen Maud Land. Until 1814, the Kingdom included the Faroe Islands (since 1035), Greenland (1261), and Iceland (1262). It also included Shetland and Orkney until 1468. It also included the following provinces, now in Sweden: Jamtland, Harjedalen and Bohuslan. - King Cnut the Great (Old Norse: "Knutr inn riki"; c. 995 12 November 1035), also known as Canute, was King of Denmark, England, and Norway, together often referred to as the Anglo-Scandinavian or North Sea Empire. After his death, the deaths of his heirs within a decade, and the Norman conquest of England in 1066, his legacy was mostly forgotten. The medieval historian Norman Cantor stated that he was "the most effective king in Anglo-Saxon history", although Cnut himself was Danish and not a Briton or Anglo-Saxon. - Emma of Normandy (c. 985 6 March 1052) was a queen consort of England, Denmark and Norway. She was the daughter of Richard I, Duke of Normandy, and his second wife, Gunnora. Through her marriages to thelred the Unready (1002-1016) and Cnut the Great (1017-1035), she became the Queen Consort of England, Denmark, and Norway. She was the mother of three sons, Edward the Confessor, Alfred, and Harthacnut, as well as two daughters, Goda of England, and Gunhilda of Denmark. Even after her husbands' deaths Emma remained in the public eye, and continued to participate actively in politics. She is the central figure within the "Encomium Emmae Reginae", a critical source for the history of early 11th-century English politics. As Catherine Karkov notes, Emma is one of the most visually represented early medieval queens. - Gunhilda of Denmark (1020 18 July 1038), a member of the House of Knytlinga, was Queen consort of Germany by her marriage with King Henry III of the Salian dynasty from 1036 until her death. What is the relationship between 'svein knutsson' and 'gunhilda of denmark'?
The answer is:
sister