After the death of his legitimate children James ( b. 1378 ), John ( b. 1380 ) and Margaret ( b. 1384 / 1388 ), all of whom died young, King Martin appointed his cousin James, the closest legitimate agnate of the Royal House of Aragon, as Governor-General of all the kingdoms of Aragon, a position that belonged traditionally to the heir presumptive.

Oliver St John, the 1st Baron was the great-great-grandson of Sir John St John ( d. c. 1482 ), eldest son of Sir John Oliver St John of Bletso ( d. 1437 ), the husband of Margaret, great-great-granddaughter of Roger de Beauchamp ( d. 1380 ), who was summoned to Parliament as Baron Beauchamp of Bletso from 1363 to 1379.

John St John ( d. 1648 ) was the great-great-great-grandson of Oliver St John ( d. 1497 ) ( whose elder brother Sir John St John ( d. c. 1488 ) was the ancestor of the Barons St John of Bletsoe and Earls of Bolingbroke ), second son of Sir Oliver St John ( d. 1437 ), the husband of Margaret, great-great-granddaughter of Roger de Beauchamp, 1st Baron Beauchamp of Bletshoe ( d. 1380 ).

There was a small port at Minehead by 1380, but it was not until 1420 that money given by Lady Margaret Luttrell enabled improvements to be made and a jetty built.

In 1361 Stewart married Margaret Graham, Countess of Menteith ( 1334 – 1380 ), a wealthy divorcee who took Robert as her fourth husband.

Firstly, in 1361, he married Margaret Graham, Countess of Menteith, ( 1334 – 1380 ) a wealthy divorcee who took him as her fourth husband.

Margaret died in 1380 and Albany subsequently married Muriella de Keith, with whom he had four children, the elder of whom was:

As a result of an illicit affair with her brother in law, William Douglas, 1st Earl of Douglas ( married to the sister of her husband ), Margaret Stewart, Countess of Mar and Angus, became the mother of George Douglas, 1st Earl of Angus ( c. 1380 – 1403 ), and secured a charter of her estates for her son, to whom in 1389 the title was granted by King Robert II.

He was remarried to Mary ( 1323 – 1380 ), daughter of the aforementioned Guy and Margaret of Valois, the sister of King Philip.

His mother Margaret died in 1380, and his father Duke Robert married a second time, to Muriella de Keith, with whom he had four children, the elder of whom was John Stewart, 2nd Earl of Buchan ( 1381 – 1424 ).

On 5 November 1380, King Richard II granted Sir William and Lady Margaret Asthorpe a licence to crenellate the Hemyock manor house ; meaning the permission to fortify it.

* Margaret ( c. 1325 – 1380 ), married ( 1 ) Edward Balliol, King of Scotland, and ( 2 ) Francis of Baux, Duke of Andria.

It was for a while the seat of the Denys family of nearby Siston who had inherited Olveston manor, together with nearby Alveston, Earthcott Green, Siston and a moiety ( 1 / 2 ) of Aust together with the rights of the Hundred Court of Langley, in 1380 on marriage to Margaret Corbet, granddaughter of Sir Peter Corbet ( d. 1362 ) Lord of Caus, Shropshire.

On 5 November 1380, King Richard II granted Sir William and Lady Margaret Asthorpe a licence to crenellate the Hemyock manor house, meaning the permission to fortify it.

She married in 1380, at the age of 15 and was widowed 10 years later.

There were descendants of superseded daughters of Casimir III of Poland ( d. 1370 ), such as his youngest daughter Anna, Countess of Celje ( d. 1425 without surviving Issue ), and her daughter Anna of Celje ( 1380 – 1416 ) whom Władysław II Jagiełło married next.

After Galeazzo's wife Isabella died in childbirth in 1373, he married secondly, on 2 October 1380, his first cousin Caterina Visconti, daughter of the late Bernabò ; with her he had two sons, Gian Maria and Filippo Maria.

* Amedeo VIII, later known as Antipope Felix V, married Mary of Burgundy ( 1380 – 1422 ), daughter of Philip the Bold

# Peter d ' Évreux, Count of Mortain ( c. 31 March 1366, Évreux – c. 29 July 1412, Bourges ), married in Alençon on 21 April 1411 Catherine ( 1380 – 1462 ), daughter of Peter II of Alençon

* Isabella ( 1380 – 1424 ), who married her cousin James II of Urgell.

Mary married Henry — then known as Bolingbroke and at the time not in direct line of succession to the throne — on 27 July 1380, at Arundel Castle.

A decade earlier ( 1380 ), Karim-ul-Mahkdum, an Arab religious missionary and learned judge, reinforced the Islamic foundation of Rajah Baguinda ’ s polity ( 1390 – 1460 ) and that of the Sultanate of Sayid Abubakar, princely scholar from Arabia who married Paramisuli, the daughter of Rajah Baguinda.

1380 – 12 April 1434 ), married Edmund of Langley, 1st Duke of York

One of them, Isabella ( or Zampea = Maria ) de Lusignan ( ca or after 1333 – in Cyprus, 1382 – 1387 ), Lady of Aradippou, married after February 26, 1349 Manuel Kantakouzenos ( ca 1326 – April 10, 1380 ), Despot of Morea.

Richard Stafford ( d. 1380 ), the younger son of Edmund de Stafford, 1st Baron Stafford, married Maud de Camville, daughter and heir of Richard de Camville of Clifton.

** Anna of Cilli ( 1380 – 1416 ), daughter, married King Władysław II Jagiełło

* Mary of Burgundy ( September 1380, Dijon – October 2, 1422, Thonon-les-Bains ), married Amadeus VIII, Duke of Savoy

He died 26 Nov 1400 in Heaton, Newcastle upon Tyne. Wife: Thomas married Joan de MOWBRAY in 1380 in Heaton.

Among Thomas Wake's guardians were Piers Gaveston and Henry, Earl of Lancaster, whose daughter Blanche ( d. 1380 ) he married before 1317.

In 1380, after the death of Isabella of England, Coucy married Isabelle, daughter of John I, Duke of Lorraine and Sophie von Württemberg ; they had one daughter, Isabel de Coucy ( date of birth unknown ; died 1411 ).

She was married to Tristan, Count of Copertino ( 1380 –), a knight of the French family of de Clermont-Lodeve.

# Catherine ( 1380, Verneuil – 25 June 1462, Paris ), married 1411 in Alençon Peter d ' Évreux, Infante of Navarre and Count of Mortain ( 1366 – 1412 ), married 1 October 1413 in Paris Louis VII, Duke of Bavaria-Ingolstadt ( 1365 – 1447 )

There is a very different interpretation of the encounter with Circe in John Gower's long didactic poem Confessio Amantis ( 1380 ).

Much of the northern part of the inner bailey was built by the 14th-century noble John of Gaunt between 1372 and 1380.

John began building at Kenilworth between 1373 and 1380 in a style designed to reinforce his royal claims in Iberia.

" Opening rounds of argument were embodied in John of Legnano's defense of the election, De fletu ecclesiæ, written and incrementally revised between 1378 and 1380, which Urban caused to be distributed in multiple copies, and in the numerous rebuttals that soon appeared.

The first recorded usage of the term in English, according to the Oxford English Dictionary, was made by John Wycliffe in 1380, where the form subarbis was used.

** John de Sutton V ( b. 1380 )

The date and venue of Henry's first marriage, to Mary de Bohun, are uncertain but her marriage licence, purchased by Henry's father, John of Gaunt, in June 1380 is retained in the Public Record Office.

The college received another substantial endowment from the estate of Sir John Fastolf of Caister Castle in Norfolk ( 1380 – 1459 ).

The north transept was built under the patronage of John of Gaunt, Duke of Lancaster around 1380.

In the fifteenth century, Blickling Hall was in the possession of Sir John Fastolf of Caister in Norfolk ( 1380 – 1459 ), who made a fortune in the Hundred Years ' War, and whose coat of arms is still on display there.

In 1341 King John of Bohemia accorded permission to Jewish families to reside within the Budweis walls and a first synagogue was erected in 1380, however several pogroms occurred in the late 15th and early 16th century.

John Kemp ( c. 1380 – 22 March 1454 ) was a medieval English cardinal, Archbishop of Canterbury, and Lord Chancellor of England.

In 1327 Walter de Elvendene created an almanac and later on John Somers of Oxford, in 1380.

From 1250 until around 1380 the manor was held by the Audley family until through marriage it passed to John Rose, an esquire of Richard II of England.

John of Fordun indicates that Rum was " with excellent sport, but few inhabitants " and " a wooded and hilly island " in 1380.

Battles occurred, such as in 1380 when Jehan d ' Ust defended the city in the name of John V, Duke of Brittany ( known in France as Jean IV ) against the Castilian fleet during the Hundred Years ' War.

Ralph Neville, 4th Baron Neville of Raby, and 1st earl of Westmorland ( 1364 – 1425 ), eldest son of John, 3rd Baron Neville, and his wife Maud Percy ( see Neville, Family ), was knighted by Thomas of Woodstock, afterwards duke of Gloucester, during the French expedition of 1380, and succeeded to his father's barony in 1388.

St John's Chapel, Deritend was established around 1380 as a chapel of ease of the parish church of Aston, with its priest supported by the associated Guild of St John, Deritend, which also maintained a school.

* Sir John de Sutton V ( 1380 – 29 August 1406 )