Historical biography archive · Updated 2026-11-03

John of Gaunt Biography and Timeline

Follow John of Gaunt through 63 dated historical records for England.

John of Gaunt, historical timeline

A chronological timeline drawn from matching World History Database records.

63Distinct records
1 of 2Page
1340–1381Years on this page

1340

Birth of John of Gaunt

Duke · Ghent · House / House of Lancaster

Birth of John of Gaunt, 3rd surviving son of King Edward III and younger brother of Edward, Prince of Wales (Edward, the Black Prince)

1359

Marriage

Duke · Reading Abbey · House / House of Lancaster

John of Gaunts illegitimate descendants, who ultimately became legitimate by his marriage to Katherine Swynford in 1396, the Beauforts, later married into the House of Tudor, which ascended to the throne in the person of Henry VII. Gaunt marries his cousin, Blanche of Lancaster, daughter of Henry of Grosmont

Peerage

Duke · Reading Abbey · House / House of Lancaster

Marries Blanche, heiress to the Palatinate of Lancaster and also becomes the 14th Baron of Halton

1361

Peerage

Duke · House / House of Lancaster

Upon the death of his father-in-law, the 1st Duke of Lancaster, in 1361, John received half his lands, the title "Earl of Lancaster", and distinction as the greatest landowner in the north of England as heir of the Palatinate of Lancaster

1362

Peerage

Duke · House / House of Lancaster

Inherits the rest of the Lancaster property when Blanche's sister Maud, Countess of Leicester (married to William V, Count of Hainaut), died without issue

Peerage

Duke · House / House of Lancaster

Gaunt receives the title "Duke of Lancaster" from Edward III. He now owns at least thirty castles and estates across England and France and maintained a household comparable in scale and organisation to that of a monarch

1367

Battle of Najera

Duke · Najera · Warfare / Hundred Years War

Fought between an Anglo-Gascon army and Franco-Castilian forces near Najera, in the province of La Rioja, Castile. The English were led by Edward, the Black Prince, and John of Gaunt, Duke of Lancaster, allied with Peter of Castile (sometimes called "Peter the Cruel") against his brother Henry of Trastámara (Spanish: Enrique II). Restores Peter the cruel to the throne of Castille

Role range: 1337-1453

1368

Blanche Dies

Duke · Tutbury Castle · House / House of Lancaster

Blanche of Lancaster dies leaving John of Gaunt with Lancastrian inheritance interests

Role range: 1362-1399

Lancastrian Estates Secured

Duke · Lancaster · House / House of Lancaster

John of Gaunt's position is strengthened by Blanche's inheritance

Role range: 1362-1399

Death of John of Gaunt

Duke · House / House of Lancaster

Death of Blanche of Lancaster

Castilian Interest

Duke · Aquitaine · Warfare / Castilian Civil War

English dynastic and military interests remain tied to Castilian politics

Role range: 1351-1369 – 1362-1399

1369

Siege of Harfleur

Duke · Harfleur · Warfare / Hundred Years War

John decides to strike Harfleur, the base of the French fleet on the Seine. Further reinforced by German mercenaries, they marched on Harfleur, but were delayed by French guerilla operations while the town prepared for a siege. John invested the town for four days in October, but he was losing so many men to dysentery and bubonic plague that he decided to abandon the siege and return to Calais

Role range: 1337-1453

Invasion of England

Duke · Calais · Warfare / Hundred Years War

By the middle of November, the survivors of the sickly army returned to Calais, where the Earl of Warwick died of plague.

Role range: 1337-1453

Invasion of England

Duke · Calais · Warfare / Hundred Years War

During the retreat from Harfleur Johns army had to fight its way across the Somme at the ford of Blanchetaque against a French army led by Hugh de Chatillon, who was captured and sold to Edward III.

Role range: 1337-1453

Invasion of England

Duke · Calais · Warfare / Hundred Years War

Though it seemed an inglorious conclusion to the campaign, John had forced the French king, Charles V, to abandon his plans to invade England that autumn.

Role range: 1337-1453

Siege of Harfleur

Duke · Harfleur · Warfare / Hundred Years War

By the middle of November, the survivors of the sickly army returned to Calais, where the Earl of Warwick died of plague.

Role range: 1337-1453

Siege of Harfleur

Duke · Harfleur · Warfare / Hundred Years War

During the retreat from Harfleur Johns army had to fight its way across the Somme at the ford of Blanchetaque against a French army led by Hugh de Chatillon, who was captured and sold to Edward III.

Role range: 1337-1453

Siege of Harfleur

Duke · Harfleur · Warfare / Hundred Years War

Though it seemed an inglorious conclusion to the campaign, John had forced the French king, Charles V, to abandon his plans to invade England that autumn.

Role range: 1337-1453

Succession

Duke · London · House / House of Lancaster

Assumes the crown of Leon & Castille by marriage with Constance of Castille

Siege of Calais

Duke · Calais · Warfare / Hundred Years War

John is sent to Calais with the Earl of Hereford and a small English army and raids northern France

Role range: 1337-1453

1370

Siege of Limoges

Duke · Limoges · Warfare / Hundred Years War

After this event, the Black Prince surrendered his lordship of Aquitaine and sailed for England, leaving John in charge.

Role range: 1337-1453

Siege of Limoges

Duke · Limoges · Warfare / Hundred Years War

He took charge of the siege operations and at one point engaging in hand-to-hand fighting in the undermining tunnels.

Role range: 1337-1453

Siege of Limoges

Duke · Limoges · Warfare / Hundred Years War

In the summer of 1370, John was sent with a small army to Aquitaine to reinforce his ailing elder brother, the Black Prince, and his younger brother Edmund of Langley, Earl of Cambridge.

Role range: 1337-1453

Siege of Limoges

Duke · Limoges · Warfare / Hundred Years War

With them, he participated in the Siege of Limoges (September 1370).

Role range: 1337-1453

1371

Marriage

Duke · House / House of Lancaster

On his marriage to Costanza of Castille Gaunt assumes the title of King of Castille and Leon, and insists that his fellow English nobles henceforth address him as "my lord of Spain". Marries Constanza of Castille, daughter of King Peter I of Castille

Marriage

Duke · Warfare / Hundred Years War

Marries Constance, daughter of Pedro the Cruel. Assumes the title King of Castille & Leon

Role range: 1337-1453

1376

Parliament

Duke · London · Government / Government of England

Presides over the "good Parliament", the Treaty of Bruges is renewed for another year

Death of John of Gaunt

Duke · House / House of Lancaster

After the death in 1376 of his older brother Edward of Woodstock (also known as the "Black Prince"), John of Gaunt contrived to protect the religious reformer John Wycliffe, possibly to counteract the growing secular power of the church

1377

Reform of Taxation

Duke · Government / Government of England

A 4d poll tax per head is raised

Reform of City Privileges

Duke · London · Government / Government of England

Attacks the privileges of the City of London

Rebellion of Rebels in London

Duke · London · House / House of Lancaster

Londoners riot & attack John of Gaunts Palace of Savoy

Rebellion of Rebels in London

Duke · London · Warfare / Military

Londoners riot & attack John of Gaunts Palace of Savoy

Death of John of Gaunt

Duke · House / House of Lancaster

When King Edward III died Johns ten-year-old nephew succeeded to the throne as Richard II of England

Succession

Duke · House / House of Lancaster

When Edward III died in 1377 and John's ten-year-old nephew succeeded as Richard II of England, John's influence strengthened

Succession

Duke · House / House of Lancaster

When King Edward III died Johns ten-year-old nephew succeeded to the throne as Richard II of England

1378

Commander of Scottish Border Forces

Duke · Commander of Scottish Border Forces · House / House of Lancaster

Appointed Commander of the Scottish border forces

Siege of St Malo

Duke · St Malo · Warfare / Hundred Years War

Leads the failed siege of St Malo

Role range: 1337-1453

1379

Reform of Government

Duke · London · Government / Government of England

Graded by rank from 4d to 10 marks

1380

Reform of Government

Duke · London · Government / Government of England

Set at 1 shilling per head, 3x the 1377 level, for the male population

1381

Siege of London

Duke · Savoy Palace · Warfare / Military

His Palace is destroyed during while he is away negtiating with the Scots

Records, sources and methodology

These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.