Given the question: Information:  - The Kingdom of the East Angles, today known as the Kingdom of East Anglia, was a small independent kingdom of the Angles comprising what are now the English counties of Norfolk and Suffolk and perhaps the eastern part of the Fens. The kingdom formed in the 6th century in the wake of the Anglo-Saxon settlement of Britain. It was ruled by the Wuffingas in the 7th and 8th centuries, but fell to Mercia in 794, and was conquered by the Danes in 869, forming part of the Danelaw. It was conquered by Edward the Elder and incorporated into the Kingdom of England in 918.  - King's Lynn , known until 1537 as Bishop's Lynn, is a seaport and market town in Norfolk, England, north of London and west of Norwich. The population of the town is 42,800.  - Norfolk is a county in East Anglia in England. It borders Lincolnshire to the west and north-west, Cambridgeshire to the west and southwest, and Suffolk to the south. Its northern and eastern boundaries are the North Sea and, to the north-west, The Wash. The county town is Norwich.  - Suffolk is an East Anglian county of historic origin in England. It has borders with Norfolk to the north, Cambridgeshire to the west and Essex to the south. The North Sea lies to the east. The county town is Ipswich; other important towns include Lowestoft, Bury St Edmunds, Newmarket and Felixstowe, one of the largest container ports in Europe.  - Norwich (also ) is a city on the River Wensum in East Anglia and lies about 100 miles (160 km) north-east of London. It is the regional administrative centre for East Anglia and county town of Norfolk. During the 11th century, Norwich was the largest city in England after London, and one of its most important. It remained the capital of the most populous English county until the Industrial Revolution.  - Wihtburh ( or Withburga ) ( died 743 ) was an East Anglia saint , princess and abbess who was possibly a daughter of Anna of East Anglia , located in present - day England . She founded a monastery at Dereham in Norfolk . A traditional story says that the Virgin Mary sent a pair of female deer to provide milk for her workers during the monastery 's construction . Withburga 's body is supposed to have been uncorrupted when discovered half a century after her death : it was later stolen on the orders of the abbot of Ely . A spring appeared at the site of the saint 's empty tomb at Dereham .  - Lincolnshire (or ; abbreviated Lincs) is a county in the east of England. It borders Norfolk to the south east, Cambridgeshire to the south, Rutland to the south west, Leicestershire and Nottinghamshire to the west, South Yorkshire to the northwest, and the East Riding of Yorkshire to the north. It also borders Northamptonshire in the south for just , England's shortest county boundary. The county town is Lincoln, where the county council has its headquarters.  - The Wash is the square-mouthed bay and estuary at the north-west corner of East Anglia on the East coast of England, where Norfolk meets Lincolnshire. It is among the largest estuaries in the United Kingdom. The Wash is fed by the rivers Witham, Welland, Nene and Great Ouse.  - Cambridgeshire (or ; abbreviated Cambs.), archaically known as the County of Cambridge, is an East Anglian county in England, bordering Lincolnshire to the north, Norfolk to the north-east, Suffolk to the east, Essex and Hertfordshire to the south, and Bedfordshire and Northamptonshire to the west. The city of Cambridge is the county town. Modern Cambridgeshire was formed in 1974 as an amalgamation of the counties of Cambridgeshire and Isle of Ely and Huntingdon and Peterborough, which had been created in 1965 from the historic counties of Cambridgeshire, Huntingdonshire, the Isle of Ely and the Soke of Peterborough. It contains most of the region known as Silicon Fen.  - East Anglia is an area in the East of England. The name derives from the Anglo-Saxon kingdom of the East Angles, a tribe that originated in Angeln, northern Germany. The area included varies but the legally defined NUTS 2 statistical unit, comprises the counties of Norfolk, Suffolk and Cambridgeshire, including the City of Peterborough unitary authority area.  - The A47 is a trunk road in England linking Birmingham to Great Yarmouth, Norfolk. Most of the section between Birmingham and Nuneaton is now classified as the B4114.  - Anna (or Onna; killed 653 or 654) was king of East Anglia from the early 640s until his death. He was a member of the Wuffingas family, the ruling dynasty of the East Angles. He was one of the three sons of Eni who ruled the kingdom of East Anglia, succeeding some time after Ecgric was killed in battle by Penda of Mercia. Anna was praised by Bede for his devotion to Christianity and was renowned for the saintliness of his family: his son Jurmin and all his daughters  Seaxburh, Æthelthryth, Æthelburh and possibly a fourth, Wihtburh  were canonised.  - England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west. The Irish Sea lies northwest of England and the Celtic Sea lies to the southwest. England is separated from continental Europe by the North Sea to the east and the English Channel to the south. The country covers five-eighths of the island of Great Britain (which lies in the North Atlantic) in its centre and south; and includes over 100 smaller islands such as the Isles of Scilly, and the Isle of Wight.  - Bede ( 672/3  26 May 735), also known as Saint Bede, Venerable Bede, and Bede the Venerable, was an English, Roman Catholic monk at the monastery of St. Peter and its companion monastery of St. Paul in the Kingdom of Northumbria of the Angles (contemporarily MonkwearmouthJarrow Abbey in Tyne and Wear, England). He is well known as an author and scholar, and his most famous work, "Ecclesiastical History of the English People" gained him the title "The Father of English History".  - The North Sea is a marginal sea of the Atlantic Ocean located between Great Britain, Scandinavia, Germany, the Netherlands, Belgium, and France. An epeiric (or "shelf") sea on the European continental shelf, it connects to the ocean through the English Channel in the south and the Norwegian Sea in the north. It is more than long and wide, with an area of around .  - Dereham, also known as East Dereham, is a town and civil parish in the English county of Norfolk. It is situated on the A47 road, some 15 miles (25 km) west of the city of Norwich and 25 miles (40 km) east of King's Lynn. The civil parish has an area of and in the 2001 census had a population of 15,659 in 6,941 households, the population at the 2011 Census increasing to 18,609. For the purposes of local government, Dereham falls within, and is the centre of administration for, the district of Breckland. The town should not be confused with the Norfolk village of West Dereham, which lies about 25 miles (40 km) away.  - Cambridge is a university city and the county town of Cambridgeshire, England, on the River Cam about north of London. At the United Kingdom Census 2011, its population was 123,867, including 24,488 students.    What entity does 'wihtburh' has the relation 'country of citizenship' with?
The answer is:
kingdom of east anglia