Question: Who was the mother of the person under whom the foreign group that conquered the country England was named before it was England in AD 43 reached its greatest extent?

<P0-S0> Hiberni (Ireland), Pictish (northern Britain) and Britons (southern Britain) tribes, all speaking Insular Celtic, inhabited the islands at the beginning of the 1st millennium AD. <P0-S1> The first Anglo-Saxons arrived as Roman power waned in the 5th century and eventually dominated the bulk of what is now England. <P0-S2> Viking invasions began in the 9th century, followed by more permanent settlements and political change—particularly in England. <P0-S3> Much of Brittonic-controlled Britain was conquered by the Roman Empire from AD 43. <P0-S4> The subsequent Norman conquest of England in 1066 and the later Angevin partial conquest of Ireland from 1169 led to the imposition of a new Norman ruling elite across much of Britain and parts of Ireland. <P0-S5> By the Late Middle Ages, Great Britain was separated into the Kingdoms of England and Scotland, while control in Ireland fluxed between Gaelic kingdoms, Hiberno-Norman lords and the English-dominated Lordship of Ireland, soon restricted only to The Pale. <P0-S6> The 1603 Union of the Crowns, Acts of Union 1707 and Acts of Union 1800 attempted to consolidate Britain and Ireland into a single political unit, the United Kingdom of Great Britain and Ireland, with the Isle of Man and the Channel Islands remaining as Crown Dependencies. <P0-S7> The expansion of the British Empire and migrations following the Irish Famine and Highland Clearances resulted in the distribution of the islands' population and culture throughout the world and a rapid de-population of Ireland in the second half of the 19th century. <P0-S8> Most of Ireland seceded from the United Kingdom after the Irish War of Independence and the subsequent Anglo-Irish Treaty (1919–1922), with six counties remaining in the UK as Northern Ireland. <SEP> <P1-S0> viking invasions began in the 9th century, followed by more permanent settlements, particularly along the east coast of ireland, the west coast of modern-day scotland and the isle of man. <P1-S1> though the vikings were eventually neutralised in ireland, their influence remained in the cities of dublin, cork, limerick, waterford and wexford. <P1-S2> england however was slowly conquered around the turn of the first millennium ad, and eventually became a feudal possession of denmark. <P1-S3> the relations between the descendants of vikings in england and counterparts in normandy, in northern france, lay at the heart of a series of events that led to the norman conquest of england in 1066. the remnants of the duchy of normandy, which conquered england, remain associated to the english crown as the channel islands to this day. <P1-S4> a century later the marriage of the future henry ii of england to eleanor of aquitaine created the angevin empire, partially under the french crown. <P1-S5> at the invitation of a provincial king and under the authority of pope adrian iv (the only englishman to be elected pope), the angevins invaded ireland in 1169. though initially intended to be kept as an independent kingdom, the failure of the irish high king to ensure the terms of the treaty of windsor led henry ii, as king of england, to rule as effective monarch under the title of lord of ireland. <P1-S6> this title was granted to his younger son but when henry's heir unexpectedly died the title of king of england and lord of ireland became entwined in one person. <SEP> <P2-S0> The Anglo - Saxons, a collection of various Germanic peoples, established several kingdoms that became the primary powers in present - day England and parts of southern Scotland. <P2-S1> They introduced the Old English language, which largely displaced the previous British language. <P2-S2> The Anglo - Saxons warred with British successor states in Wales, Cornwall, and the Hen Ogledd (Old North; the Brythonic - speaking parts of northern England and southern Scotland), as well as with each other. <P2-S3> Raids by Vikings became frequent after about AD 800, and the Norsemen settled in large parts of what is now England. <P2-S4> During this period, several rulers attempted to unite the various Anglo - Saxon kingdoms, an effort that led to the emergence of the Kingdom of England by the 10th century. <P2-S5> The end of Roman rule in Britain facilitated the Anglo - Saxon settlement of Britain, which historians often regard as the origin of England and of the English people. <SEP> <P3-S0> The imperial period of Rome lasted approximately 1,500 years compared to the 500 years of the Republican era. <P3-S1> The first two centuries of the empire's existence were a period of unprecedented political stability and prosperity known as the Pax Romana, or ``Roman Peace ''. <P3-S2> Following Octavian's victory, the size of the empire was dramatically increased. <P3-S3> After the assassination of Caligula in AD 41, the Senate briefly considered restoring the republic, but the Praetorian Guard proclaimed Claudius emperor instead. <P3-S4> Under Claudius, the empire invaded Britannia, its first major expansion since Augustus. <P3-S5> After Claudius' successor, Nero, committed suicide in AD 68, the empire suffered a series of brief civil wars, as well as a concurrent major rebellion in Judea, during which four different legionary generals were proclaimed emperor. <P3-S6> Vespasian emerged triumphant in AD 69, establishing the Flavian dynasty, before being succeeded by his son Titus, who opened the Colosseum shortly after the eruption of Mount Vesuvius. <P3-S7> His short reign was followed by the long reign of his brother Domitian, who was eventually assassinated. <P3-S8> The empire reached its greatest extent under Trajan, the second in this line. <P3-S9> The Senate then appointed the first of the Five Good Emperors. <SEP> <P4-S0> Marcus Ulpius Traianus was born on 18 September 53AD in the Roman province of Hispania Baetica (in what is now Andalusia in modern Spain), in the city of Italica (now in the municipal area of Santiponce, in the outskirts of Seville). <P4-S1> Trajan's birthplace of Italica was founded as a Roman military colony of "Italian" settlers in 206BC, though it is unknown when the Ulpii arrived there. <P4-S2> It is possible, but cannot be substantiated, that Trajan's ancestors married local women and lost their citizenship at some point, but they certainly recovered their status when the city became a municipium with Latin citizenship in the mid-1st century BC. <P4-S3> Although frequently designated the first provincial emperor, and dismissed by later writers such as Cassius Dio (himself of provincial origin) as "an Iberian, and neither an Italian nor even an Italiot", Trajan appears to have hailed on his father's side from the area of Tuder (modern Todi) in Umbria, at the border with Etruria, and on his mother's side from the Gens Marcia, of an Italic family of Sabine origin. <SEP> <P5-S0> in 1797, patrick colquhoun was able to persuade the west indies merchants who operated at the pool of london on the river thames, to establish a police force at the docks to prevent rampant theft that was causing annual estimated losses of £500,000 worth of cargo. <P5-S1> the idea of a police, as it then existed in france, was considered as a potentially undesirable foreign import. <P5-S2> in building the case for the police in the face of england's firm anti-police sentiment, colquhoun framed the political rationale on economic indicators to show that a police dedicated to crime prevention was "perfectly congenial to the principle of the british constitution." <P5-S3> moreover, he went so far as to praise the french system, which had reached "the greatest degree of perfection" in his estimation.