19 Mar is in March.
1330 Execution of Edmund of Woodstock
1470 Welles' Rebellion and Battle of Losecoat Field aka Empingham
On 19 Mar 1286 Alexander III King Scotland (age 44) died at Kinghorn Ness. His granddaughter Margaret "Maid of Norway" I Queen Scotland (age 2) succeeded I Queen Scotland.
Around 19 Mar 1311 the nobility attempt to constrain King Edward II of England (age 26) by imposing a Council of Ordainers upon him. The Council included twenty-one signatories including:
Guy Beauchamp 10th Earl Warwick (age 39).
Robert Clifford 1st Baron Clifford (age 36).
Thomas Plantagenet 2nd Earl of Leicester, 2nd Earl Lancaster, Earl of Salisbury and Lincoln (age 33).
Gilbert de Clare 8th Earl Gloucester 7th Earl Hertford.
Henry Lacy 4th Earl Lincoln, Earl Salisbury.
John Capet 4th Earl Richmond (age 45).
William Marshal 1st Baron Marshal (age 33), and.
Aymer de Valence 2nd Earl Pembroke (age 36).
On 19 Mar 1330 the King's uncle Edmund of Woodstock 1st Earl Kent (age 28) was beheaded at Winchester Castle [Map]. Earl Kent 5C 1321 forfeit. The executioner was a convicted latrine cleaner who was also facing the death penalty; no-one else would undertake the task of executing a member of the Royal family. Edmund had been convicted of plotting against the court believing his brother Edward II was still alive. It later emerged the plot had been created by Roger Mortimer 1st Earl March (age 42) to entrap Edmund of Woodstock 1st Earl Kent (age 28). King Edward III of England (age 17) was unable to show leniency risking complicity in the plot. he was buried at Westminster Abbey [Map].
After 19 Mar 1366 Albert "With the Pigtail" Habsburg III Duke Austria (age 16) and Elizabeth Bohemia Duchess Austria were married. Elizabeth Bohemia Duchess Austria by marriage Duchess Austria. She the daughter of Charles IV King Bohemia Holy Roman Emperor Luxemburg (age 49) and Anna Schweidnitz Holy Roman Empress Luxemburg. He the son of Albert Habsburg II Duke Austria and Johanna Pfirt Duchess Austria. They were second cousin once removed.
On 19 Mar 1383 Piers Mauley 4th Baron de Mauley (age 52) died at Nether Hallam Manor West Riding. His grandson Piers Mauley 5th Baron de Mauley (age 5) succeeded 5th Baron Mauley 1C 1295.
Before 19 Mar 1470 Robert Welles 8th Baron Willoughby 8th Baron Welles and Elizabeth Bourchier Baroness Willoughby Eresby were married. She by marriage Baroness Willoughby de Eresby. He a great x 5 grandson of King Edward "Longshanks" I of England. She a great x 2 granddaughter of King Edward III of England. 
On 19 Mar 1470 Robert Welles 8th Baron Willoughby 8th Baron Welles was beheaded at Doncaster [Map]. He was buried at Whitefriars Doncaster [Map]. His sister Joan Welles 9th Baroness Willoughby Eresby succeeded 9th Baroness Willoughby de Eresby. Richard Hastings Baron Willoughby (age 37) by marriage Baron Willoughby de Eresby. He, Hastings, a favourite of King Edward IV of England (age 27), younger brother of Edward's (age 27) great friend William Hastings 1st Baron Hastings (age 39).
On 19 Mar 1533 John Bourchier 2nd Baron Berners (age 66) died at Calais [Map]. His daughter Joan Bourchier 3rd Baroness Berners de jure 3rd Baroness Berners. Edmund Knyvet Baron Berners (age 49) by marriage Baron Berners.
On 19 Mar 1550 John Plunkett 4th Baron Killeen (age 40) died. His son Patrick Plunkett 5th Baron Killeen (age 28) succeeded 5th Baron Killeen.
On 19 Mar 1553 Alberta Palatinate Simmern (age 14) died. Her brother Louis VI Elector Palatine (age 13) succeeded VI Elector Palatine Rhine.
After 19 Mar 1553. St Martin's Church Stamford [Map]. Monument to Richard Cecil (deceased) and his wife Jane Heckington. Kneeling figures under an elaborate cornice. Attributed to Cornelius Cure. Elizabethan Period.
Jane Heckington: She was born to William Heckington. Before 1520 Richard Cecil (age 25) and she were married. On 10 Mar 1587 she died.
Henry Machyn's Diary. 19 Mar 1555. The xix day of Marche in the mornyng the Kyng('s) (age 27) grace rune at the tylt a-gaynst odur Spaneards, and brake iiij stayffes by viij of the cloke in the mornyng.
Henry Machyn's Diary. 19 Mar 1558. The xix day of Marche my lord mayre and the althermen whent unto Yeld-halle [Map], and ther all the craftes in London browth in the bylles what ther compene wold lend unto the quen('s) (age 42) grace for to helpe her in her fa ... toward the wars.
Note. P. 168. Loan from the city to the queen. A loan was then called a "prest," which is probably the word our diarist could not remember. The amount of this prest was 20,000l. and it was to bear interest at 12 per cent. (Stowe.)
On 19 Mar 1563 the Greyhound was wrecked on its journey to Le Havre with the loss of around two-hundred lives.
Captain Thomas Finch (age 51) drowned.
Brothers John Wentworth (age 25) and James Wentworth (age 23) drowned.
On 19 Mar 1604 John IV King Portugal was born to Teodosio II Duke of Braganza (age 35) and Ana de Velasco y Téllez Girón Duchess Braganza (age 19).
After 19 Mar 1612. Jacobean Hooded Monument monument with a figure leaning on their elbow to Mary Dawnay Baroness Eure (deceased) at St Laurence's Church, Ludlow [Map]. The monument is now in the south transept but was originally in a more prestigious position at the east end of the chancel, on the south side, opposite the Townshend tomb. It was moved when the chancel was restored by Scott in 1859-60. The figure of Lady Eure was originally painted: traces of black paint can still be seen in the folds of her elaborate dress. The inscription ... Here lyeth expecting a joyful resurrection the body of Dame Mary Eure late wife to the Right Ho Ralph Lord Eure (age 53) Baron of Malton, Lord President of the Principality and Marches of Wales and Leiutenant of the same and daughter of Sir John Dawney of Sessey in the County of York she departed this life the 19th day of March 1612 at the age of 55.
Mary Dawnay Baroness Eure: Around 1557 she was born to John Dawnay of Sessay, Yorkshire. In or before 1578 Ralph Eure 3rd Baron Eure (age 19) and Mary Dawnay Baroness Eure (age 20) were married. In 1594 William Eure 2nd Baron Eure (age 64) died. In 1594 His son Ralph Eure 3rd Baron Eure (age 35) succeeded 3rd Baron Eure. Mary Dawnay Baroness Eure (age 37) by marriage Baroness Eure. On 19 Mar 1612 Mary Dawnay Baroness Eure (age 55) died.
On 19 Mar 1616 Henry Pierrepont (age 70) died. Church of St Edmund Holme Pierrepont [Map]. Carved by John Smythson (age 46). Elizabethan Period. Armorials:
Top left 
Cavendish Arms - he was married to Frances Cavendish (age 67) daughter of William Cavendish and Bess of Hardwick Countess Shrewsbury and Waterford.
Top right Pierrepoint Arms.
Centre Bottom: Quartered 1&4 Pierrepoint Arms 2&3 Unknown Arms impaled Quartered 1&4 Cavendish Arms 2&3 Unknown Arms.
Frances Cavendish: On 18 Jun 1548 she was born to William Cavendish (age 43) and Bess of Hardwick Countess Shrewsbury and Waterford (age 21). Before 1584 Henry Pierrepont (age 38) and Frances Cavendish (age 35) were married. In Jan 1632 Frances Cavendish (age 83) died.
On 19 Mar 1643 William Compton (age 18) and James Compton 3rd Earl of Northampton (age 20) fought for the Royalist army at Hopton Heath Hopton.
Spencer Compton 2nd Earl of Northampton (age 41) was killed. His son James Compton 3rd Earl of Northampton (age 20) succeeded 3rd Earl of Northampton 5C 1618, 4th Baron Compton of Compton in Warwickshire.
On 19 Mar 1658 George Graham 2nd Baronet (age 34) died. His son Richard Graham 1st Viscount Preston (age 8) succeeded 3rd Baronet Graham of Esk in Cumberland.
On 19 Mar 1663 Thomas Bruce 7th Earl Kincardine was born to Alexander Bruce 4th Earl Kincardine.
Evelyn's Diary. 19 Mar 1693. A new Secretary of State, Sir John Trenchard (age 43); the Attorney-General, Somers (age 42), made Lord-Keeper, a young lawyer of extraordinary merit. King William (age 42) goes toward Flanders; but returns, the wind being contrary.
On 19 Mar 1701 John Egerton 3rd Earl Bridgewater (age 54) died. He was buried at Little Gaddesden. His son Scroop Egerton 1st Duke Bridgewater (age 19) succeeded 4th Earl Bridgewater 2C 1617, 5th Viscount Brackley.
On 19 Mar 1703 Ann Howard died. Monument in St Peter's Church Elford [Map].NOTEXT
Ann Howard: She was born to Craven Howard and Anne Ogle Maid of Honour.
On 19 Mar 1711 Thomas Ken Bishop (age 73) died. He was buried in Church of St John the Baptist Frome.
On 19 Mar 1717 John Campbell 1st Earl Breadalbaine and Holland (age 80) died. On 19 Mar 1717 His son John Campbell 2nd Earl Breadalbaine and Holland (age 54) succeeded 2nd Earl Breadalbaine and Holland. Henrietta Villiers Countess Breadalbaine and Holland by marriage Countess Breadalbaine and Holland.
On 19 Mar 1722 Leonard Smelt (age 39) was elected MP Northallerton during the 1722 General Election.
On 19 Mar 1722 Thomas Frankland 3rd Baronet (age 37) was elected MP Thirsk during the 1722 General Election.
On 19 Mar 1724 Lewis Watson 1st Earl Rockingham (age 68) died. His grandson Lewis Watson 2nd Earl Rockingham (age 10) succeeded 2nd Earl Rockingham, 4th Baron Rockingham of Northampton, 4th Baronet Watson of Rockingham Castle in Northamptonshire. Catherine Furnese Countess Guilford and Rockingham by marriage Countess Rockingham.
On 19 Mar 1727 Charles Ingram 9th Viscount Irvine was born to Colonel Charles Ingram (age 30).
On 19 Mar 1750 Francis Burton aka Conyngham 2nd Baron Conyngham (age 25) and Elizabeth Clements were married.
On 19 Mar 1757 Henry Vane 2nd Earl Darlington (age 30) and Margaret Lowther Countess Darlington (age 29) were married at London. He the son of Henry Vane 1st Earl Darlington (age 52) and Grace Fitzroy Countess Darlington (age 59). He a great grandson of King Charles II of England Scotland and Ireland. 
On 19 Mar 1762 Orlando Bridgeman 1st Earl Bradford was born to Henry Bridgeman 1st Baron Bradford (age 36) and Elizabeth Simpson.
On 19 Mar 1770 Stephen Moore 2nd Earl Mount Cashell was born to Stephen Moore 1st Earl Mount Cashell (age 39) and Helena Rawdon Countess Mount Cashell.
On 13 Mar 1771 Charles Knollys 5th Earl Banbury (age 67) died. He was buried on 19 Mar 1771 at St John the Baptist Church, Burford. His son William Knollys 6th Earl Banbury (age 44) de jure 6th Earl Banbury, 6th Viscount Wallingford, 6th Baron Knollys.
On 19 Mar 1782 Peter Drummond Burrell 2nd Baron Gwydyr 22nd Baron Willoughby was born to Peter Burrell Baron Willoughby, 1st Baron Gwydyr (age 27) and Priscilla Barbara Elizabeth Bertie 21st Baroness Willoughby Eresby (age 21).
On 19 Mar 1783 Archbishop Frederick Cornwallis (age 70) died. He was buried at St Mary's Church Lambeth Palace [Map].
On 19 Mar 1788 John Somers-Cocks 2nd Earl Somers was born to John Cocks 1st Earl Somers (age 27).
After 19 Mar 1791. Monument to Penelope Boothby (deceased) at St Oswald's Church, Ashbourne [Map] sculpted by Thomas Banks (age 55). Her epitaph reads "She was in form and intellect most exquisite. The unfortunate Parents ventured their all on this frail Bark. And the wreck was total."
Penelope Boothby: On 11 Apr 1785 she was born to Brooke Boothby 6th Baronet (age 40) in Lichfield, Staffordshire. On 19 Mar 1791 Penelope Boothby (age 5) died at Ashbourne Hall, Derbyshire. She was buried in St Oswald's Church, Ashbourne.
On 19 Mar 1807 Thomas Parker 5th Earl Macclesfield (age 44) and Eliza Wolstenholme Countess Macclesfield (age 26) were married. He the son of Thomas Parker 3rd Earl Macclesfield.
On 19 Mar 1808 Charles IV King Spain (age 59) abdicated as King Spain. Ferdinand VII King Spain (age 23) succeeded VII King Spain.
On 19 Mar 1814 Gilbert Elliot-Murray-Kynynmound 3rd Earl Minto was born to Gilbert Elliot-Murray-Kynynmound 2nd Earl Minto (age 31).
On 19 Mar 1820 Richard William Penn Curzon Howe 1st Earl Howe (age 23) and Harriet Georgiana Brudenell Countess Howe (age 21) were married. She the daughter of Robert Brudenell 6th Earl Cardigan (age 50) and Penelope Cooke Countess Cardigan (age 50).
On 19 Mar 1844 William Lowther 1st Earl Lonsdale (age 86) died at York House Twickenham. On 19 Mar 1844 His son William Lowther 2nd Earl Lonsdale (age 56) succeeded 2nd Earl Lonsdale 2C 1807, 3rd Viscount Lowther, 3rd Baron Lowther.
On 19 Mar 1845 Alan Egerton 3rd Baron Egerton Tatton was born to Wilbraham Egerton 1st Baron Egerton Tatton (age 38) and Charlotte Elizabeth Loftus Baroness Egerton Tatton.
On 19 Mar 1859 William Courtenay 10th Earl Devon (age 81) died. His son William Courtenay 11th Earl Devon (age 51) succeeded 11th Earl Devon 5C 1553. Elizabeth Fortescue Countess Devon (age 57) by marriage Countess Devon.
On 19 Mar 1863 Frederick William Hotham 6th Baron Hotham was born to William Francis Hotham (age 43) and Emma Carbonnel (age 41).
On 19 Mar 1878 Henry Thomas Liddell 1st Earl Ravensworth (age 81) died. His son Henry Liddell 2nd Earl of Ravensworth (age 56) succeeded 2nd Earl Ravensworth, 3rd Baron Ravensworth of Ravensworth Castle in County Durham, 8th Baronet Liddell of Ravensworth Castle.
On 19 Mar 1879 Hugh Richard Arthur "Bendor" Grosvenor 2nd Duke Westminster was born to Victor Alexander Grosvenor (age 25) and Sibell Mary Lumley (age 23).
On 19 Mar 1881 William Gordon Cornwallis Eliot 4th Earl St Germans (age 51) died. His brother Henry Cornwallis Eliot 5th Earl St Germans (age 46) succeeded 5th Earl St Germans, 6th Baron Eliot of St Germans in Cornwall.
On 19 Mar 1885 Friedrich Ferdinand Glücksburg Duke Schleswig Holstein Sonderburg Glücksburg (age 29) and Victoria Friederike Oldenburg Duchess Schleswig Holstein Sonderburg Glücksburg (age 25) were married. She the daughter of Frederick Christian Oldenburg II Duke Schleswig Holstein Sonderburg Augustenburg and Adelheid Hohenlohe Langenburg Duchess Schleswig Holstein Sonderburg Augustenburg. He the son of Friedrich Glücksburg Duke Schleswig Holstein Sonderburg Glücksburg (age 70) and Adelheid Schasumburg Lippe Duchess Schleswig Holstein Sonderburg Glücksburg. They were third cousin once removed. He a great x 3 grandson of King George II of Great Britain and Ireland. She a great x 4 granddaughter of King George II of Great Britain and Ireland. 
On 19 Mar 1930 Arthur James Balfour 1st Earl Balfour (age 81) died. His brother Gerald Balfour 2nd Earl of Balfour (age 76) succeeded 2nd Earl Balfour of Whittingehame of Haddingtonshire. Elizabeth Bulwer-Lytton Countess Balfour (age 62) by marriage Countess Balfour of Whittingehame of Haddingtonshire.
On 19 Mar 1931 Anthony Rowland Clegg-Hill 8th Viscount Hill was born to Gerald Rowland Clegg-Hill 7th Viscount Hill (age 26).
On 19 Mar 1947 Charles Beauclerk 13th Duke St Albans (age 31) and Suzanne Marie Fesq Duchess St Albans (age 25) were married. He a great x 5 grandson of King Charles II of England Scotland and Ireland.
On 19 Mar 1980 Charles Ingram Courtenay Wood 2nd Earl Halifax (age 67) died. His son Charles Edward Peter Neil Wood 3rd Earl Halifax (age 36) succeeded 3rd Earl Halifax 4C 1944, 4th Viscount Halifax 2C 1866, 7th Baronet Wood of Barnsley in Yorkshire.
On 19 Mar 2019 William Simon Pease 3rd Baron Wardington (age 93) died. Baron Wardington of Alnmouth in Northumberland extinct.