On 29 Sep 1397 King Richard II (age 30) rewarded his relations with Dukedoms, possibly for their part in downfall of Thomas of Woodstock 1st Duke of Gloucester (deceased), Thomas Beauchamp 12th Earl Warwick (age 59) and Richard Fitzalan 9th Earl of Surrey 11th Earl of Arundel (deceased) ...

His older half-brother John Holland 1st Duke Exeter (age 45) was created 1st Duke Exeter. Elizabeth Lancaster Duchess Exeter (age 34) by marriage Duchess Exeter.

His nephew Thomas Holland 1st Duke Surrey (age 23) was created 1st Duke Surrey.

His second cousin once removed Thomas Mowbray 1st Duke of Norfolk (age 29) was created 1st Duke Norfolk. Elizabeth Fitzalan Duchess Norfolk (age 31) by marriage Duchess Norfolk.

His first cousin [her husband] Edward 2nd Duke of York 1st Duke Albemarle (age 24) was created 1st Duke Albemarle. Beatrice Burgundy Countess Rutland and Cork (age 24) by marriage Duchess Albemarle.

His illegitimate first cousin John Beaufort 1st Marquess Somerset and Dorset (age 24) was created 1st Marquess Somerset, 1st Marquess Dorset. Margaret Holland Duchess Clarence (age 12) by marriage Marchioness Somerset, Marchioness Dorset.

Ralph Neville 1st Earl of Westmoreland (age 33) was created 1st Earl of Westmoreland. Joan Beaufort Countess of Westmoreland (age 18) by marriage Countess of Westmoreland.

On 25 Oct 1415 King Henry V of England (age 29) defeated the French army at the Battle of Agincourt. King Henry V of England commanded the Main Battle. Thomas Camoys 1st Baron Camoys (age 64) commanded the Rearguard.

Richard de Vere 11th Earl of Oxford (age 30) commanded. Humphrey Lancaster 1st Duke Gloucester (age 25) was wounded, and was protected by his brother King Henry V of England.

[her former husband] Edward 2nd Duke of York 1st Duke Albemarle (age 42), commander of the Vanguard, was killed; the most senior English casualty. Duke Albemarle, Earl of Rutland and Earl Cork extinct. Richard Plantagenet 3rd Duke of York (age 4) inherited his estates including Conisbrough Castle [Map].

John Fortescue (age 35), Dafydd Gam Brecon (age 35) and Edward Burnell (age 44) and Roger Vaughan of Bredwardine (age 38) were killed.

Michael de la Pole 3rd Earl Suffolk (age 21) was killed. His brother William "Jackanapes" de la Pole 1st Duke of Suffolk (age 19) succeeded 4th Earl Suffolk, 4th Baron Pole.

The English included: Louis Robbessart (age 25), Richard Beauchamp 13th Earl Warwick (age 33), William Botreaux 3rd Baron Botreaux (age 26), William Bourchier 1st Count of Eu (age 41), John Cornwall 1st Baron Fanhope 1st Baron Milbroke (age 51), Edward Courtenay (age 30), Ralph Cromwell 3rd Baron Cromwell (age 12), Thomas Dutton (age 19), Edmund Ferrers 6th Baron Ferrers of Chartley (age 29), Roger Fiennes (age 31), Henry Fitzhugh 3rd Baron Fitzhugh (age 57), John Grey (age 28), John Grey 1st Earl Tankerville (age 31), William Harrington (age 42) as the King's Standard Bearer, Walter Hungerford 1st Baron Hungerford (age 37), Piers Legh (age 26) (wounded), Alfred Longford, Thomas Montagu 1st Count Perche 4th Earl Salisbury (age 27), Thomas Morley 6th Baron Marshal 5th Baron Morley (age 22), John Rodney, Richard Scrope 3rd Baron Scrope of Bolton (age 22), Robert Strelley (age 18), James Tuchet 5th Baron Audley, 2nd Baron Tuchet (age 17), Robert Umfraville (age 52), Thomas West 2nd Baron West (age 35), Robert Willoughby 6th Baron Willoughby (age 30). Thomas Erpingham (age 60) commanded the archers. Thomas Rempston (age 26) was present. Thomas Strickland (age 48) carried the Banner of St George.

Thomas Tunstall (age 57) was killed.

The Welsh included: William ap Thomas "Blue Knight of Gwent" Herbert (age 35), Walter Sais (age 95), Roger Vaughan (age 70) and his son Roger Vaughan (age 5). Owen Tudor (age 15) is believed to have been present as a squire.

The French army suffered significant casualties. Charles Albret (age 46), Philip Valois II Count Nevers (age 26), John of Bar (age 35), Jacques Chatillon (age 48), David Rambures (age 51) and his three sons: Jean Rambures, Hugues Rambures, Philippe Rambures, Waleran Luxemburg (age 60) and Hector de Chartres were killed.

Charles Valois Duke Orléans (age 20) was captured by Richard Waller (age 20) for which he was knighted on the battlefield by King Henry V of England.

John Bourbon I Duke Bourbon (age 34) and Charles Artois Count of Eu (age 21) were captured.

Robert of Bar Count Soissons Count Marle (age 25) was killed. His daughter Jeanne of Bar Countess Soissons succeeded Countess Soissons 1367.

Edward of Bar III Duke of Bar (age 38) was killed. His brother Cardinal Louis of Bar (age 38) succeeded I Duke Bar.

John Valois I Duke Alençon was killed. His son John Valois II Duke Alençon (age 6) succeeded II Duke Alençon.

Frederick Metz I Count Vaudémont (age 47) was killed. His son Antoine Count of Vaudémont (age 15) succeeded Count Vaudémont.

Anthony Valois Duke Brabant (age 31) was killed. His son John Valois IV Duke Brabant (age 12) succeeded IV Duke Brabant. Jacqueline Wittelsbach Duchess Brabant and Gloucester (age 14) by marriage Duchess Brabant.

Jean II Le Maingre "Boucicaut" (age 49) was captured.

Georges de La Trémoille (age 33) was captured.