Question: Wymering Manor is a Grade II* listed building, which is the oldest in the city of Portsmouth, England, and was the manor house of Wymering, it became the property of King William the Conqueror, after which event that was fought on 14 October 1066 between the Norman-French army of William, the Duke of Normandy, and an English army under the Anglo-Saxon King Harold Godwinson, beginning the Norman conquest of England?

Context articles: Battle of Hastings
England in the High Middle Ages
Harold Godwinson
Leofwine Godwinson
Preston Manor, Brighton
Wymering Manor
Stafford, Dolton
Battle of Stamford Bridge
Anglo-Normans
Manor of Sydenham

The Battle of Hastings was fought on 14 October 1066 between the Norman-French army of William, the Duke of Normandy, and an English army under the Anglo-Saxon King Harold Godwinson, beginning the Norman conquest of England.
 It took place approximately 7 mi northwest of Hastings, close to the present-day town of Battle, East Sussex, and was a decisive Norman victory.
England in the High Middle Ages includes the history of England between the Norman Conquest in 1066 and the death of King John, considered by some to be the last of the Angevin kings of England, in 1216.
 A disputed succession and victory at the Battle of Hastings led to the conquest of England by William of Normandy in 1066.
 This linked the crown of England with possessions in France and brought a new aristocracy to the country that dominated landholding, government and the church.
 They brought with them the French language and maintained their rule through a system of castles and the introduction of a feudal system of landholding.
 By the time of William's death in 1087, England formed the largest part of an Anglo-Norman empire, ruled by nobles with landholdings across England, Normandy and Wales.
 William's sons disputed succession to his lands, with William II emerging as ruler of England and much of Normandy.
 On his death in 1100 his younger brother claimed the throne as Henry I and defeated his brother Robert to reunite England and Normandy.
 Henry was a ruthless yet effective king, but after the death of his only male heir in the White Ship tragedy, he persuaded his barons to recognise his daughter Matilda as heir.
 When Henry died in 1135 her cousin Stephen of Blois had himself proclaimed king, leading to a civil war known as The Anarchy.
 Eventually Stephen recognised Matilda's son Henry as his heir and when Stephen died in 1154, he succeeded as Henry II.
Harold Godwinson (  1022  – 14 October 1066), often called Harold II, was the last Anglo-Saxon king of England.
 Harold reigned from 6 January 1066 until his death at the Battle of Hastings on 14 October, fighting the Norman invaders led by William the Conqueror during the Norman conquest of England.
 His death marked the end of Anglo-Saxon rule over England.
Leofwine Godwinson (c. 1035 – 14 October 1066) was a younger brother of King Harold Godwinson, the fifth son of Earl Godwin.
Preston Manor is the former manor house of the ancient Sussex village of Preston, now part of the coastal city of Brighton and Hove, England.
 The present building dates mostly from 1738, when Lord of the manor Thomas Western rebuilt the original 13th-century structure (part of which remains inside), and 1905 when Charles Stanley Peach's renovation and enlargement gave the house its current appearance.
 The manor house passed through several owners, including the Stanfords—reputedly the richest family in Sussex— after several centuries of ownership by the Diocese of Chichester and a period in which it was Crown property.
 Since 1932, when the Stanford family bequeathed the building to Brighton Corporation, Preston Manor has been a museum and exhibition venue evoking upper-class life during the Edwardian era.
 A walled garden, designated as being of historic interest, has old flint walls, a ruined wellhouse and a pet graveyard, among other features.
 The manor house is reputed to be one of the most haunted buildings in Britain: it has been the subject of ghost tours and television programmes, and a wide range of ghostly sightings have been alleged over a long time period.
 English Heritage has listed the house at Grade II* for its architectural and historical importance; some other structures in the garden are listed at the lower Grade II.
Wymering Manor is a Grade II* listed building, which is the oldest in the city of Portsmouth, England, and was the manor house of Wymering, a settlement mentioned in the Domesday Book.
 It is first recorded in 1042, when it was owned by King Edward the Confessor.
 After the Battle of Hastings it became the property of King William the Conqueror, until 1084.
Stafford (anciently Stowford) is an historic manor in the parish of Dolton in Devon, England.
 The present manor house known as Stafford Barton is a grade II* listed building.
 A house of some form has existed on the manor probably since the Norman Conquest in the 11th century.
 Surviving walls can be dated to the 16th century.
 Many additions and renovations have taken place in the intervening years, and in the early 20th century Charles Luxmoore made many alterations and extensions and imported several major architectural features from ancient local mansions undergoing demolition so that "it has become somewhat difficult to discern its original form".
 In the nineteenth century the estate was very substantial, with 400 acres of associated farmland and a large staff, and by 1956, at the end of the Luxmoore tenure, it had grown to 1,460 acres with 7 farms, several cottages and smallholdings.
The Battle of Stamford Bridge took place at the village of Stamford Bridge, East Riding of Yorkshire, in England on 25 September 1066, between an English army under King Harold Godwinson and an invading Norwegian force led by King Harald Hardrada and the English king's brother Tostig Godwinson.
 After a bloody battle, both Hardrada and Tostig along with most of the Norwegians were killed.
 Although Harold Godwinson repelled the Norwegian invaders, his army was defeated by the Normans at Hastings less than three weeks later.
 The battle has traditionally been presented as symbolising the end of the Viking Age, although major Scandinavian campaigns in Britain and Ireland occurred in the following decades, such as those of King Sweyn Estrithson of Denmark in 1069–1070 and King Magnus Barefoot of Norway in 1098 and 1102–1103.
The Anglo-Normans were the medieval ruling class in England, composed mainly of a combination of ethnic Anglo-Saxons and Normans, following the Norman conquest.
 A small number of Normans had earlier befriended future Anglo-Saxon King of England, Edward the Confessor, during his exile in his mother's homeland of Normandy.
 When he returned to England some of them went with him, and so there were Normans already settled in England prior to the conquest.
 Following the death of Edward, the powerful Anglo-Saxon noble, Harold Godwinson, acceded to the English throne until his defeat by William, Duke of Normandy at the Battle of Hastings.
The Manor of Sydenham was a historic manor in Somerset, England, situated about 1/4 mile north-east of the centre of historic Bridgwater.
 Sydenham House, the manor house, a grade II listed building situated in the parish of Wembdon, was built in the early 16th century and refronted and rebuilt after 1613.
 In 1937 British Cellophane Ltd set up production and built extensive factories on 59 acres (240,000 m2) of land ("Sydenham Manor Fields") adjacent to the manor house.
 Production ceased in 2005 and between 2010 and 2015 the industrial site was razed to the ground.
 In 2015 the razed site is owned by EDF Energy, which in 2012 purchased the manor house with the former factory site, intended for construction of temporary accommodation for 1,000 workers on the proposed new Hinkley Point C nuclear power station 12 miles away.
 The Manor House is situated to the north side of the A39 Bath Road.
 Its owners were on the losing side in the Civil War and again in the Monmouth Rebellion.