Some descendants listed in Williamson, David. AKA Emma of Normandy (Debrett's kings and queens of Britain. Topsfield, Mass. : Salem House Publishers, 1986, pg. 219)
English Monarch. Queen consort of King Ethelred the Unready and King Canute. The daughter of Richard, Duke of Normandy and his wife Gunnora. Emma married Ethelred in 1002, and gave birth to two sons, Albert and Edward (the future King Edward the Confessor). When the Danish invaded England in 1013, Emma escaped to Normandy with her sons. Her sons remained there, but Emma returned in 1016 to marry the new king, Canute. She had one son, Hardicanute. When Canute died in 1035, her sons Edward and Alfred returned from Normandy to overthrow Canute's illegitimate son, Harold Harefoot. Alfred was captured, but Edward escaped back to Normandy with his mother. When Emma's son Hardicanute assumed the throne, she retired to Winchester, where she died, aged about 68.