question: What is the place of birth of Æthelgifu, Abbess Of Shaftesbury's mother?
context: [["Keku\u02bbiapoiwa II", ["Keku\u02bbiapoiwa II was a Hawaiian chiefess and the mother of the king Kamehameha I."]], ["\u00c6thelgifu, abbess of Shaftesbury", ["\u00c6thelgifu , was a daughter of King Alfred the Great, an Anglo-Saxon king of the 9th century.", "She was the third of Alfred and his wife", "Ealhswith's five children and the second eldest daughter.", "She was likely born sometime in the 870s.", "A Welsh monk named Asser who wrote a biography of Alfred the Great, described her as 'devoted to God through her holy virginity, subject and consecrated to the rule of monastic life, entered the service of God'.", "She was said to have become a nun as a result of her bad health.", "Alfred founded", "Shaftesbury Abbey ca. 890 and placed \u00c6thelgifu as its first abbess.", "This Abbey along with Athelney monastery (for monks) received 1/8 of Alfred's annual revenue in support.", "It appears to have housed nuns from an upper-class background.", "Very little is known about \u00c6thelgifu's time as abbess.", "In Alfred's will, there is mention of two estates left 'to his middle daughter \u00c6thelgifu' at Kingsclere and at Candover in Hampshire, and the will itself makes no mention of her role as abbess.", "It is possible that the will was written before \u00c6thelgifu became abbess, or it is possible that these estates were given to her while she was abbess, but they reverted to the male line once she died."]], ["Minamoto no Chikako", ["She was the mother of Prince Morinaga."]], ["Lord Edmund Howard", ["Lord Edmund Howard( \u2013 19 March 1539) was the third son of Thomas Howard, 2nd Duke of Norfolk, and his first wife, Elizabeth Tilney.", "His sister, Elizabeth, was the mother of Henry VIII's second wife, Anne Boleyn, and he was the father of the king's fifth wife, Catherine Howard.", "His first cousin, Margery Wentworth, was the mother of Henry's third wife, Jane Seymour."]], ["Julia Warhola", ["Julia Warhola( November 20, 1891 \u2014 November 22, 1972) was the mother of the American artist Andy Warhol."]], ["Lomawa Ndwandwe", ["laNgolotsheni( Lomawa) Ndwandwe( died September 1938) was the Ndlovukati( Queen Mother) of Swaziland, the wife of King Ngwane V, and the mother of King Sobhuza II."]], ["Trinidad Tecson", ["Trinidad Perez Tecson (November 18, 1848 \u2013 January 28, 1928), known as the \"Mother of Biak-na-Bato\" and \"Mother of Mercy\", fought to gain Philippines independence.", "She was given the title \"Mother of Biak-na-Bato\" by Gen. Emilio Aguinaldo.", "She was also cited as the \"Mother of the Philippine National Red Cross\" for her service to her fellow Katipuneros."]], ["Somnjalose Simelane", ["Somnjalose Simelane was the mother of King Sobhuza I and wife of King Ndvungunye."]], ["Fatima bint Mubarak Al Ketbi", ["Fatima bint Mubarak Al Ketbi is the third wife of Sheikh Zayed bin Sultan Al Nahyan, the founder and inaugural president of United Arab Emirates, and late emir( ruler) of Abu Dhabi.", "She is referred to as the mother of sheikhs and as the Mother of the UAE."]], ["Ealhswith", ["Ealhswith or Ealswitha (died 5 December 902) was the wife of King Alfred the Great.", "Her father was a Mercian nobleman, \u00c6thelred Mucel, Ealdorman of the Gaini, which is thought to be an old Mercian tribal group.", "Her mother was Eadburh, a member of the Mercian royal family, and according to the historian Cyril Hart", "she was a descendant of King Coenwulf of Mercia.", "She is commemorated as a saint in the Christian East and the West on 20 July."]]]
supporting_facts: [["\u00c6thelgifu, abbess of Shaftesbury", 2], ["Ealhswith", 1]]
evidences: [["\u00c6thelgifu", "mother", "Ealhswith"], ["Ealhswith", "place of birth", "Mercia"]]
answer: Mercia