Early military service of Sir Thomas Erpingham Erpingham served under
William Ufford, 2nd Earl of Suffolk in 1372 and was with Suffolk in France the following year. In 1379 he was serving under the
Captain of Calais,
William Montagu, 2nd Earl of Salisbury. In the summer of 1380 he was
indentured into the
retinue of
John of Gaunt, Duke of Lancaster, a military leader and the third surviving son of
Edward III of England, with whom Salisbury had recently served. Indentured retainers gave their allegiance for life in a personal written contract—conditions of service and payment were agreed, and these were rarely relaxed. The year Erpingham was
knighted is unknown, but he is likely to have been at least 21. In June 1380 he was named as 'Sir Thomas' in an order of payment made by Lancaster, the earliest known date at which his knighthood is referred to. The payment, provided by the ducal
manor of
Gimingham, was for a considerable annual income of £20—it has been estimated that during the 15th century only 12,000 households in England had an income of between £10 and £300. Erpingham was with Lancaster during the
English invasion of Scotland in 1385. Lancaster's determination to rule the
Kingdom of Castile after his marriage to the Castilian princess
Constance in 1371 dominated his life for 15 years. In 1386
Richard II of England agreed to release the funds needed for Lancaster to lead a Castilian campaign. Lancaster's royal status gave him a prominence in affairs of state that created tension between him and Richard, and the cost of the Castilian campaign was seen by the King's advisers as a price worth paying for the political freedom Richard would gain from Lancaster's absence. Erpingham was with Lancaster when his army set sail from
Plymouth in July 1386. It landed at
Brest, France, and temporarily relieved the
besieged English garrison. After leaving Brest the army arrived at
A Coruña, and went on to bring
Galicia under English control.
John I of Portugal joined with Lancaster in March 1387, but because of a lack of food for their animals, and the successful defensive tactics employed by the Castilians, their campaign was abandoned after six weeks. In 1388, Erpingham participated before
Charles VI of France in a
jousting tournament at
Montereau, his adversary being Sir John de Barres. As related by the French chronicler
Jean Froissart, half way through the tournament, Erpingham was struck violently on his shield by his opponent, and was knocked off his horse. Stunned by the blow, he managed to recover and continue the joust, "to the satisfaction of the king and his lords". Erpingham was sent back to England to watch over Lancaster's son
Henry Bolingbroke and went into his service. In 1390 he was with Bolingbroke's retinue when it crossed the
English Channel with the intention of joining Duke
Louis II of Bourbon in a siege of the Tunisian port of
Mahdia on a
crusading expedition via
Marseille. The expedition was abandoned when Charles VI refused him permission to travel through France. Bolingbroke then went on a
crusade in Lithuania. Erpingham, one of the most trusted and experienced of Lancaster's men, belonged to what the historian Douglas Biggs describes as "the 'adult' portion of Henry's force"—older men who were probably sent by Lancaster to guide and protect his son. The "crusade" resulted in an unsuccessful siege of
Vilnius and the capture of
Lithuanian women and children, who were then converted to Christianity. It is not known if Erpingham was present with Bolingbroke at the siege. Erpingham was with Bolingbroke when he returned unnecessarily to Prussia in July 1392—a peace was being made in Lithuania between its ruler,
Władysław II Jagiełło, and his cousin
Vytautas, and the crusaders who had supported Vytautas had already left. Bolingbroke and his reduced retinue journeyed through Europe and the
Near East, visiting Prague, Vienna,
Corfu, and the
Holy Land. It is thought that it was in Italy that Erpingham obtained the silk for the
chasuble which bears his name, now in the
Victoria and Albert Museum.
Revolution of 1399 The historian
Helen Castor has described the Lancastrian presence in
East Anglia as a "disparate collection” that lacked coherence or a single identity. Erpingham rose to become the most important of Lancaster's
retainers in the region. He was appointed to a commission of peace, and given powers to preserve order in Norfolk in the aftermath of the
Peasants' Revolt in the summer of 1381. He had a part in supervising the defence of Norfolk in 1385, when a French invasion seemed imminent. In 1396 Lancaster granted him the legal right to use the land within the
hundred of South Erpingham, a reward for his loyal service to the Duchy of Lancaster. stops the trial by battle between
Henry, Duke of Hereford and the
Duke of Norfolk (
The Chronicle of England (1864)) In January 1398 a dispute erupted between Bolingbroke and
Thomas de Mowbray, 1st Duke of Norfolk, after Mowbray had attempted to ambush and kill Lancaster, and which the King ordered be settled by a
trial by battle between the two men. During the five months before 16 September, the day the trial was due to take place, Bolingbroke travelled throughout England on a tour of the Lancastrian lands. Richard stopped the contest as it was about to begin and banished Bolingbroke from the kingdom for ten years, and exiled Mowbray for life. Those assembled were told that the trial had been stopped to avoid dishonouring the loser and to prevent a
feud from arising, but chroniclers (writing after Henry IV's accession) considered Richard's decision an act of revenge. Bolingbroke, as one of the five
Lords Appellant, had rebelled in November 1387; for a year they maintained Richard as a
figurehead with little actual power. Erpingham was one of 17 named companions who volunteered to accompany Henry Bolingbroke into exile. He entrusted his lands and property to Sir Robert Berney and others. The party headed for Paris, where they were welcomed by Charles VI and presented with lavish gifts. Following the death of his father on 3 February 1399, Bolingbroke's inheritance was confiscated by Richard, and his banishment was increased by the King to life. On 17 June 1399, Erpingham witnessed a secret pact made in Paris between Bolingbroke and
Louis I, Duke of Orléans, the brother of Charles VI, stating that as allies they would support each other against each other's enemies—the kings of England and France excepted. Erpingham was one of Bolingbroke's supporters who landed with him at
Ravenspur, probably at the end of June 1399. Whilst Bolingbroke was gaining support for his cause to restore his rightful inheritance of the Duchy of Lancaster as he moved across northern and central England, Richard was delayed in Ireland. He eventually found ships to cross the
Irish Sea, and reached Wales by around 24 July 1399. Realising the strength of the threat posed by his rival, he deserted his
court and moved across country with a small group of followers. met by his enemies—led by Erpingham—after the King was lured by the
Earl of Northumberland from
Conwy Castle (
British Library) By 27 July 1399 Bolingbroke had reached
Berkeley, near
Bristol, where he had a meeting with Richard's uncle the
Duke of York. At Berkeley, York deserted the King's cause and joined Bolingbroke. Shortly afterwards, Erpingham arrested
Henry le Despenser, bishop of Norwich and one of the few remaining supporters of Richard prepared to resist Bolingbroke. Richard had reached
Conwy Castle when
Chester fell to Bolingbroke on 5 August. The King was persuaded by the
Earl of Northumberland to leave Conwy and travel to
Rhuddlan Castle, but during the journey his party was ambushed and he was taken prisoner. According to a French
chronicle, the ambush was devised by Northumberland and carried out by his men, led by Erpingham. When Richard saw armed men everywhere, Northumberland's plans were revealed to him, and: "As he spoke, Erpingham came up with all the people of the Earl, his trumpets sounding aloud." Taken to London under armed guard and kept under Erpingham's custody in the
Tower of London, Richard was given no option by Bolingbroke and his representatives—including Erpingham—but to relinquish the throne. Erpingham was given two important positions at court by Bolingbroke. He was made
lord warden and constable of Dover Castle as early as 21 August, and appointed to be
chamberlain of the royal household after Henry's accession, a post which made him the head of the royal household with overall responsibility for the arrangement of Henry's domestic affairs, and which he held until 1404. His appointment as lord warden and constable involved the command of a garrison at the castle, and gave Erpingham a position in the King's council when strategic matters were discussed; as constable, he was paid over £300 a year. ==Career under Henry IV==