Empress Matilda (10 September 1167), also known as Empress Maud, was Holy Roman Empress as the consort of Emperor Henry V from 1110 until his death in 1125, and was subsequently a claimant to the English throne, and Lady of the English, during the civil war known as the Anarchy. Following the death of her father, King Henry I of England, as his only surviving child and nominated heir, she asserted her right to the English throne. However, her cousin Stephen of Blois usurped the crown.

Matilda was the eldest child and only surviving daughter of Henry I of England and his first wife, Matilda of Scotland. As a child, she went to Germany where she was married to the future Henry V. She travelled with the emperor to Italy in 1116, was controversially crowned empress in St Peter's Basilica, and acted as the imperial regent in Italy. Matilda and Henry V had no children, and when he died in 1125, his rival Lothair of Supplinburg claimed the imperial crown.

Matilda's brother, William Adelin, died in the White Ship disaster of 1120, leaving Matilda's father and realm facing a potential succession crisis. Upon her widowhood in the Holy Roman Empire, Henry I recalled Matilda to his Duchy of Normandy and arranged for her to marry Geoffrey of Anjou to form an alliance to protect his southern borders in France. Henry had no further legitimate children and nominated Matilda as his heir, making his court swear an oath of loyalty to her and her successors, but the decision was not popular in his Anglo-Norman court. Henry died in 1135, but Matilda and Geoffrey faced opposition from the barons. Henry's nephew and successor, King Stephen, enjoyed the backing of the English Church. Stephen took steps to solidify his new regime but faced threats both from neighbouring powers and from opponents within his kingdom.

In 1139, Matilda crossed to England to take the kingdom by force, supported by her half-brother Robert, Earl of Gloucester, and her uncle David I of Scotland, while her husband, Geoffrey, focused on conquering Normandy. Matilda's forces captured Stephen at the Battle of Lincoln in 1141, but her attempt to be crowned at Westminster Abbey collapsed in the face of bitter opposition from the London crowds. As a result of this retreat, Matilda was never formally declared Queen of England, and was instead titled "Lady of the English" (). Robert was captured following the Rout of Winchester in 1141, and Matilda agreed to exchange Stephen for him. Matilda was besieged at Oxford Castle by Stephen's forces that winter, but escaped at night across the frozen River Isis (Thames) to Abingdon. The war degenerated into a stalemate, with Matilda controlling much of the south-west of England, and Stephen the south-east and the Midlands. Large parts of the rest of the country were in the hands of local, independent barons.

Matilda returned to Normandy, now in the hands of her husband, in 1148, leaving their eldest son to continue the campaign in England; he was eventually declared Stephen's heir after the signing of the Treaty of Wallingford and succeeded to the throne as Henry II in 1154, forming the Angevin Empire. Matilda settled her court near Rouen and for the rest of her life concerned herself with the administration of Normandy, acting on her son's behalf when necessary. Particularly in the early years of her son's reign, she provided political advice and attempted to mediate during the Becket controversy. She worked extensively with the Church, founding Cistercian monasteries, and was known for her piety. She was buried under the high altar at Bec Abbey after her death in 1167, until much later when her tomb was moved to Rouen Cathedral.

Early life

Matilda was born to Henry I, King of England and Duke of Normandy, and his first wife, Matilda of Scotland, possibly on 7 February 1102 at Sutton Courtenay, in Berkshire. Henry was the youngest son of William the Conqueror, who had invaded England in 1066, creating an empire stretching into Wales. The invasion had created an Anglo-Norman elite, many with estates spread across both sides of the English Channel. These barons typically had close links to the Kingdom of France, which was then a loose collection of counties and smaller polities, under only the minimal control of the French king. Her mother Matilda was the daughter of Malcolm III of Scotland and Margaret of Wessex, a member of the West Saxon royal family, and a descendant of Alfred the Great. For Henry I, marrying Matilda of Scotland had given his reign increased legitimacy, and for her it had been an opportunity for high status and power in England.

Matilda had a younger, legitimate brother, William Adelin, and her father's relationships with numerous mistresses resulted in around 22 illegitimate siblings. After an initial success in which William's forces destroyed the Angevins' Welsh infantry, the battle went well for Matilda's forces. Robert and Ranulf's cavalry encircled Stephen's centre, and the King found himself surrounded by the Angevin army.

Matilda received Stephen in person at her court in Gloucester, before having him moved to Bristol Castle, traditionally used for holding high-status prisoners. Matilda now began to take the necessary steps to have herself crowned queen in his place, which would require the agreement of the Church and her coronation at Westminster. Henry of Winchester summoned a council at Winchester before Easter in his capacity as papal legate to consider the clergy's view. Matilda had made a private deal with Henry that he would deliver the support of the Church in exchange for being granted control over Church affairs. Henry handed over the royal treasury to her, which proved to be rather depleted except for Stephen's crown, and he excommunicated many of her enemies who refused to switch sides. Archbishop Theobald of Canterbury was unwilling to declare Matilda queen so rapidly, however, and a delegation of clergy and nobles, headed by Theobald, travelled to Bristol to see Stephen, who agreed that, given the situation, he was prepared to release his subjects from their oath of fealty to him.

The clergy gathered again in Winchester after Easter, on 7 April 1141, and the following day they declared that Matilda should be monarch in place of Stephen. She assumed the title "Lady of England and Normandy" () as a precursor to her coronation. Stephen's wife, Queen Matilda, wrote to complain and demand her husband's release. Nonetheless, Matilda then advanced to London to arrange her coronation in June, where her position became precarious. Despite securing the support of Geoffrey, Earl of Essex, who controlled the Tower of London, forces loyal to King Stephen and Queen Matilda remained close to the city and the citizens were fearful about welcoming the Empress. On 24 June, shortly before the planned coronation, the city rose up against the Empress and Geoffrey of Essex; Matilda and her followers fled just in time, making a chaotic retreat back to Oxford.

Meanwhile, Geoffrey of Anjou invaded Normandy again and, in the absence of Waleran of Beaumont, who was still fighting in England, Geoffrey took all the Duchy south of the River Seine and east of the Risle. No help was forthcoming from Stephen's brother Theobald this time either, who appears to have been preoccupied with his own problems with France—the new French king, Louis VII, had rejected his father's regional alliance, improving relations with Anjou and taking a more bellicose line with Theobald, which would result in war the following year. Geoffrey's success in Normandy and Stephen's weakness in England began to influence the loyalty of many Anglo-Norman barons, who feared losing their lands in England to Robert and the Empress, and their possessions in Normandy to Geoffrey. Many started to leave Stephen's faction. His friend and advisor Waleran was one of those who decided to defect in mid-1141, crossing into Normandy to secure his ancestral possessions by allying himself with the Angevins, and bringing Worcestershire into the Empress's camp. Waleran's twin brother, Robert, effectively withdrew from fighting in the conflict at the same time. Other supporters of the Empress were restored in their former strongholds, such as Nigel of Ely, and still others received new earldoms in the west of England. The royal control over the minting of coins broke down, leading to coins being struck by local barons and bishops across the country.

Rout of Winchester and the Siege of Oxford

thumb|upright|alt=A photograph of Oxford Castle in the 21st century|St George's Tower at [[Oxford Castle]]

Matilda's position was transformed by her defeat at the Rout of Winchester. Her alliance with Henry of Winchester proved short-lived and they soon fell out over political patronage and ecclesiastical policy; Henry transferred his support back to Stephen's cause. In response, in July the Empress and Robert of Gloucester besieged Henry in his episcopal castle at Winchester, using the royal castle in the city as the base for their operations. Queen Matilda had kept her husband's cause alive in the south-east of England, and the Queen, backed by her lieutenant William of Ypres and reinforced with fresh troops from London, took the opportunity to advance on Winchester. Their forces encircled Matilda's army. Matilda decided to escape from the city with Brian Fitz Count and Reginald, Earl of Cornwall, another of her half-brothers, while the rest of her army delayed the royal forces. In the subsequent battle the Empress's forces were defeated and Robert himself was taken prisoner during the retreat, although Matilda escaped, exhausted, to her fortress at Devizes.

With both Stephen and Robert held prisoner, negotiations were held to try to come to agreement on a long-term peace settlement, but Queen Matilda was unwilling to offer any compromise to the Empress, and Robert refused to accept any offer to encourage him to change sides to Stephen. Instead, in November the two sides simply exchanged the two leaders, Stephen returning to his queen, and Robert to the Empress in Oxford. Henry held another church council, which reversed its previous decision and reaffirmed Stephen's legitimacy to rule, and the King and Queen were crowned anew at Christmas 1141. Stephen then spent the summer attacking some of the new Angevin castles built the previous year, including Cirencester, Bampton and Wareham.

During the summer of 1142 Robert returned to Normandy to assist Geoffrey with operations against some of Stephen's remaining followers there, before returning in the autumn. Matilda came under increased pressure from Stephen's forces and was surrounded at Oxford. Once on the other side, the King and his men stormed into the town, trapping Matilda in the castle. Matilda and her companions reportedly wore white to camouflage themselves against the snow.

Stalemate

thumb|alt=A map of Normandy in 1142|[[Geoffrey of Anjou's invasion of Normandy, 1142–43]]

In the aftermath of the retreat from Winchester, Matilda rebuilt her court at Devizes Castle in Wiltshire, a former property of the Bishop of Salisbury that had been confiscated by Stephen. She established her household knights on the surrounding estates, supported by Flemish mercenaries, ruling through the network of local sheriffs and other officials. Many of those that had lost lands in the regions held by the King travelled west to take up patronage from Matilda. Backed by the pragmatic Robert of Gloucester, Matilda was content to engage in a drawn-out struggle, and the war soon entered a stalemate.

At first, the balance of power appeared to move slightly in Matilda's favour. Robert besieged Stephen in 1143 at Wilton Castle, an assembly point for royal forces in Herefordshire. Stephen attempted to break out and escape, resulting in the Battle of Wilton. Once again, the Angevin cavalry proved too strong, and for a moment it appeared that Stephen might be captured for a second time, before finally managing to escape. Later in the year, Geoffrey of Essex rose up in rebellion against Stephen in East Anglia. Geoffrey based himself from the Isle of Ely and began a military campaign against Cambridge, with the intention of progressing south towards London. Ranulf of Chester revolted once again in the summer of 1144.

Meanwhile, Geoffrey of Anjou finished securing his hold on southern Normandy, and in January 1144 he advanced into Rouen, the capital of the Duchy, concluding his campaign.

Despite these successes, Matilda was unable to consolidate her position. Miles of Gloucester, one of the most talented of her military commanders, had died while hunting over the previous Christmas. Geoffrey of Essex's rebellion against Stephen in the east ended with his death in September 1144 during an attack on Burwell Castle in Cambridgeshire. As a result, Stephen made progress against Matilda's forces in the west in 1145, recapturing Faringdon Castle in Oxfordshire.

Conclusion of the war

thumb|alt=Picture of Henry II and Eleanor of Aquitain|upright=1.3|12th-century depiction of Matilda's eldest son [[Henry II of England|Henry II and his wife Eleanor holding court]]

The character of the conflict in England gradually began to shift; by the late 1140s, the major fighting in the war was over, giving way to an intractable stalemate, with only the occasional outbreak of fresh fighting. Several of Matilda's key supporters died: in 1147 Robert of Gloucester died peacefully, and Brian Fitz Count gradually withdrew from public life, probably eventually joining a monastery; by 1151 he was dead. Many of Matilda's other followers joined the Second Crusade when it was announced in 1145, leaving the region for several years.

Matilda's eldest son Henry slowly began to assume a leading role in the conflict. He had remained in France when his mother first left for England. He crossed over to England in 1142, before returning to Anjou in 1144. In 1147, Henry intervened in England with a small mercenary army but the expedition failed, not least because Henry lacked the funds to pay his men. In the end Stephen himself ended up paying off Henry's mercenaries, allowing him to return home safely; his reasons for doing so remain unclear.