15 Aug is in August.
On 15 Aug 1057 Lulach King Scotland succeeded King Scotland.
On 15 Aug 1057 King Macbeth of Scotland (age 52) died.
Before 15 Aug 1171 Ferdinand II King Leon (age 34) and Urraca Burgundy Queen Consort Leon (age 23) were married. She by marriage Queen Consort Leon. She the daughter of Afonso "Conqueror Founder Great" I King Portugal (age 62) and Malfada Savoy Queen Consort Portugal. He the son of Alfonso VII King Castile VII King Leon and Berenguela Barcelona Queen Consort Castile and Leon. They were half second cousins.
On 15 Aug 1171 Alfonso IX King Leon was born to Ferdinand II King Leon (age 34) and Urraca Burgundy Queen Consort Leon (age 23). Coefficient of inbreeding 2.00%.
On 15 Aug 1191 Henry Hohenstaufen VI Holy Roman Emperor (age 25) was crowned VI Holy Roman Emperor.
On 15 Aug 1193 King Philip II of France (age 27) and Ingeborg Estridsen Queen Consort France (age 19) were married. She by marriage Queen Consort of France. She the daughter of Valdemar "Great" I King Denmark. He the son of Louis VII King Franks and Adèle Blois. He a great x 2 grandson of King William "Conqueror" I of England. 
On 15 Aug 1209 Frederick I King Jerusalem II Holy Roman Emperor (age 14) and Constance Barcelona (age 30) were married at Messina. She the daughter of Alfonso II King Aragon and Sancha Ivrea Queen Consort Aragon. He the son of Henry Hohenstaufen VI Holy Roman Emperor. They were third cousin once removed.
Liber de Antiquis Legibus 1255. 15 Aug 1255. In the same year, the King of Scotland (age 13) and his Queen (age 14), daughter of the King of England, came into England, and, on the Assumption of Saint Mary [15 August] were with his lordship the King at Wudestok [Map]; upon which day, the said King held a great and most noble Court, nearly all his Earls and Barons being present.
On 15 Aug 1299 Ralph Greystoke 1st Baron Greystoke was born to Robert Fitzralph (age 23) and Elizabeth Neville (age 28).
On 15 Aug 1301 Roger Strange 4th Baron Strange Knockin was born to John Strange 2nd Baron Strange Knockin (age 19) and Isolde Chaworth Baroness Strange Knockin at Knockyn.
On 15 Aug 1316 John of Eltham 1st Earl Cornwall was born to King Edward II of England (age 32) and Isabella of France Queen Consort England (age 21) at Eltham Palace [Map]. Coefficient of inbreeding 2.16%.
On 15 Aug 1345 Bartholomew de Lisle 3rd Baron Lisle (age 37) died. His son John de Lisle 4th Baron Lisle (age 9) succeeded 4th Baron Lisle 1C 1299.
On 15 Aug 1366 John de Lisle 5th Baron Lisle was born to John de Lisle 4th Baron Lisle (age 30).
Between 15 Aug 1369 and 08 Sep 1369 William Vavasour (age 35) died. His son William Vavasour (age 11) de jure 8th Baron Vavasour.
On 15 Aug 1369 Philippa of Hainault Queen Consort England (age 55) died at Windsor Castle [Map]. Her husband King Edward III of England (age 56) and youngest son Thomas of Woodstock 1st Duke of Gloucester (age 14) were present. She was given a state funeral six months later on 09 Jan 1370 at which she was interred at on the northeast side of the Chapel of St Edward the Confessor, Westminster Abbey [Map] at Westminster Abbey. Her alabaster effigy was executed by sculptor Jean de Liège.
Before 15 Aug 1385 Aubrey de Vere 10th Earl of Oxford (age 47) and Alice Fitzwalter Countess of Oxford were married. She by marriage Countess of Oxford. He the son of John de Vere 7th Earl of Oxford and Maud Badlesmere Countess of Oxford. They were second cousin once removed. He a great x 5 grandson of King Henry "Curtmantle" II of England. She a great x 4 granddaughter of King Henry "Curtmantle" II of England. 
On 15 Aug 1385 Richard de Vere 11th Earl of Oxford was born to Aubrey de Vere 10th Earl of Oxford (age 47) and Alice Fitzwalter Countess of Oxford.
On 15 Aug 1393 Leopold "The Fat" Habsburg IV Duke Austria (age 22) and Catherine Valois Duchess Austria (age 15) were married. She the daughter of Philip "Bold" Valois II Duke Burgundy (age 51) and Margaret Dampierre Duchess Burgundy (age 45). He the son of Leopold "The Just" Habsburg III Duke Austria and Viridis Visconti Duchess Austria (age 41). They were third cousin once removed. She a great x 3 granddaughter of King Edward "Longshanks" I of England. 
On 15 Aug 1402 Humphrey Stafford was born to Edmund Stafford 5th Earl Stafford (age 24) and Anne of Gloucester Plantagenet Countess Eu and Stafford (age 19). He a great grandson of King Edward III of England.
Chronicle of Gregory 1403-1419. 15 Aug 1416. Alle so that same yere the Duke of Bedforde (age 27) and the Erle of Marche (age 24), on oure Lady Day the Assumpsyon, they fought whythe viij grete carykys of Jene and whythe l. othyr shyppys, and they toke hem whythe hyr patronys and drownyde a grette hulke of the contre of Flaundrys.
On 15 Aug 1461 Louis "Father of the People" XI King France (age 38) was crowned XI King France: Capet Valois.
On or before 15 Aug 1467 William Bourchier Viscount Bourchier (age 37) and Anne Woodville Viscountess Bourchier (age 29) were married. An example of a Woodville marriage to a wealthy family which antagonised the nobilty - see Woodville Marriages. William Bourchier Viscount Bourchier (age 37) was heir to his father Henry Bourchier 2nd Count Eu 1st Earl Essex (age 63). She the daughter of Richard Woodville 1st Earl Rivers (age 62) and Jacquetta of Luxemburg Duchess Bedford (age 52). He the son of Henry Bourchier 2nd Count Eu 1st Earl Essex (age 63) and Isabel York Countess Eu and Essex (age 58). He a great x 2 grandson of King Edward III of England. 
Around 15 Aug 1469 King Edward IV of England (age 27) was imprisoned at Middleham Castle [Map].
Henry Machyn's Diary. 15 Aug 1555. The xv day of August was a grett ffett on the see [fight on the sea] be-twyn the Frencmen and the Flemmyng, and ther wher dyvers of boyth partes slene, and boyth men and shypes and dyvers taken, and the goodes.
On 10 Aug 1557 or 15 Aug 1557 Jean Bourbon Count Soissons and Enghien (age 29) was killed at the Battle of St Quentin. His brother Louis Bourbon Prince Condé (age 27) succeeded Count Soissons 1367.
Henry Machyn's Diary. 15 Aug 1559. The xv day of August the Quen('s) (age 25) grace returned from Hamtun cowrte [Map] unto ( ... ) my lord [admiral's] (age 49) place; and ther her had grett cher, for my lord [admiral] byldyd a goodly banketthowsse [banquet house] for her grace; [it was] gyldyd rychely and pentyd, for he kept a gret [many] of penters [painters] a grett wylle in the contrey.NOTEXT
On 15 Aug 1560 Thomas Stanley 2nd Baron Monteagle (age 53) died at Hornby. His son William Stanley 3rd Baron Monteagle (age 32) succeeded 3rd Baron Monteagle. Anne Spencer Countess Dorset by marriage Baroness Monteagle.
On 15 Aug 1569 Edward Denny 1st Earl Norwich was born to Henry Denny (age 29) and Honora Grey (age 29).
On 15 Aug 1575 Diego King Asturias was born to Philip "The Prudent" II King Spain (age 48) and Anna of Austria Queen Consort Spain (age 25). Coefficient of inbreeding 21.27%.
On 15 Aug 1575 John Brooke 1st Baron Cobham was born to Henry Brooke (age 37) and Anne Sutton (age 39).
On 15 Aug 1591 Queen Elizabeth I of England and Ireland (age 57) arrived at Cowdray House [Map] the home of Anthony Browne 1st Viscount Montague (age 62) and Magdalen Dacre Viscountess Montague (age 53). She was welcomed by a breakfast for some 300 guests. George Browne (age 36) was knighted. Henry Browne organised the hunting. Elizabeth stayed until the 21 Aug 1591. 
On 15 Aug 1604 and 16 Aug 1604 Prince Charles (age 3) and Alexander Seton (age 49) lodged at the Leicester townhouse of William Skipwith (age 40) on their way to London.
On 15 Aug 1608 Henry Howard 22nd Earl Arundel 5th Earl Surrey 2nd Earl Norfolk was born to Thomas Howard 21st Earl Arundel 4th Earl Surrey 1st Earl Norfolk (age 23) and Alethea Talbot Countess Arundel, Surrey and Norfolk (age 23).NOTEXT
After 15 Aug 1625. St Oswald's Church, Malpas [Map]. Monument to Hugh "The Younger" Cholmondeley and Mary Holford (deceased). Jacobean Period. She wearing a Bongrace. Chrisom Child.
Hugh "The Younger" Cholmondeley: In 1552 he was born to Hugh "The Elder" Cholmondeley (age 39) and Ann Dorman. In 1575 Hugh "The Younger" Cholmondeley (age 23) and Mary Holford (age 12) were married. On 23 Jul 1601 Hugh "The Younger" Cholmondeley (age 49) died.
Mary Holford: On 20 Jan 1562 she was born. On 15 Aug 1625 Mary Holford (age 63) died at Vale Royal.
On 15 Aug 1626 Bishop John Cosins (age 31) and Frances Blakiston were married at St Margaret's Church.
On 15 Aug 1630 George "Fairy Earl" Fitzgerald 16th Earl of Kildare (age 18) and Joan Boyle Countess Kildare (age 19) were married. She the daughter of Richard Boyle 1st Earl Cork (age 63) and Catherine Fenton Countess Cork.
On 15 Aug 1648 Henry Godolphin was born to Francis Godolphin (age 42) and Dorothy Berkeley (age 46) at Godolphin House, Helston.
Evelyn's Diary. 15 Aug 1665. There perished this week 5,000. See Great Plague of London.
Pepy's Diary. 15 Aug 1666. Mighty sleepy; slept till past eight of the clock, and was called up by a letter from Sir W. Coventry (age 38), which, among other things, tells me how we have burned one hundred and sixty ships of the enemy within the Fly1. I up, and with all possible haste, and in pain for fear of coming late, it being our day of attending the Duke of Yorke (age 32), to St. James's, where they are full of the particulars; how they are generally good merchant ships, some of them laden and supposed rich ships. We spent five fire-ships upon them. We landed on the Schelling (Sir Philip Howard (age 35) with some men, and Holmes (age 44), I think; with others, about 1000 in all), and burned a town; and so come away.
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Note 1. On the 8th August the Duke of Albemarle (age 57) reported to Lord Arlington (age 48) that he had "sent 1000 good men under Sir R. Holmes (age 44) and Sir William Jennings to destroy the islands of Vlie and Schelling". On the 10th James Hayes wrote to Williamson: "On the 9th at noon smoke was seen rising from several places in the island of Vlie, and the 10th brought news that Sir Robert had burned in the enemy's harbour 160 outward bound valuable merchant men and three men-of-war, and taken a little pleasure boat and eight guns in four hours. The loss is computed at a million sterling, and will make great confusion when the people see themselves in the power of the English at their very doors. Sir Robert then landed his forces, and is burning the houses in Vlie and Schelling as bonfires for his good success at sea" (Calendar of State Papers, 1666-67, pp. 21,27).
Evelyn's Diary. 03 Aug 1690. The French landed some soldiers at Teignmouth [Map], in Devon, and burned some poor houses. The French fleet still hovering about the western coast, and we having 300 sail of rich merchant-ships in the bay of Plymouth [Map], our fleet began to move toward them, under three admirals. The country in the west all on their guard. A very extraordinary fine season; but on the 12th was a very great storm of thunder and lightning, and on the 15th the season much changed to wet and cold. The militia and trained bands, horse and foot, which were up through England, were dismissed. The French King having news that King William (age 39) was slain, and his army defeated in Ireland, caused such a triumph at Paris, and all over France, as was never heard of; when, in the midst of it, the unhappy King James (age 56) being vanquished, by a speedy flight and escape, himself brought the news of his own defeat.
On or before 15 Aug 1690 Charles Tuke 2nd Baronet (age 19) died of wound received at the Battle of the Boyne fighting for King James II of England Scotland and Ireland (age 56). Baronet Tuke of Cressing Temple extinct.
Evelyn's Diary. 15 Aug 1690. I was desired to be one of the bail of the Earl of Clarendon, for his release from the Tower [Map], with divers noblemen. The Bishop of St. Asaph (age 62) expounds his prophecies to me and Mr. Pepys (age 57), etc. The troops from Blackheath [Map] march to Portsmouth [Map]. That sweet and hopeful youth, Sir Charles Tuke (age 19), died of the wounds he received in the fight of the Boyne, to the great sorrow of all his friends, being (I think) the last male of that family, to which my wife (age 55) is related. A more virtuous young gentleman I never knew; he was learned for his age, having had the advantage of the choicest breeding abroad, both as to arts and arms; he had traveled much, but was so unhappy as to fall in the side of his unfortunate King (age 56).
Evelyn's Diary. 15 Aug 1690. The unseasonable and most tempestuous weather happening, the naval expedition is hindered, and the extremity of wet causes the Siege of Limerick to be raised, King William (age 39) returned to England. Lord Sidney (age 41) left Governor of what is conquered in Ireland, which is near three parts [in four].
On 15 Aug 1714 Philip Stanhope 2nd Earl Stanhope was born to James Stanhope 1st Earl Stanhope (age 41) and Lucy Pitt Countess Stanhope (age 22).
On 15 Aug 1718 William Constable 4th Viscount Dunbar (age 64) died without legitimate issue.
On 15 Aug 1730 James Ogilvy 1st Earl Seafield 4th Earl Findlater (age 67) died. His son James Ogilvy 5th Earl Findlater 2nd Earl Seafield (age 41) succeeded 5th Earl Findlater, 2nd Earl Seafield. Sophia Hope Countess Findlater (age 28) by marriage Countess Findlater.
On 15 Aug 1782 James Maitland 8th Earl Lauderdale (age 23) and Eleanor Todd (age 20) were married. He the son of John Maitland 7th Earl Lauderdale (age 64) and Mary Turner Lombe Countess Launderdale.
On 15 Aug 1798 Henry Labouchere 1st Baron Taunton was born to Peter Caesar Labouchere and Dorothy Elizabeth Baring (age 27) at Over Stowey.
On 15 Aug 1802 Aubrey Beauclerk 6th Duke St Albans (age 36) and Louisa Grace Manners Duchess St Albans (age 25) were married. She by marriage Duchess St Albans. She the daughter of John Manners and Louisa Tollemache 7th Countess Dysart (age 57). He the son of Aubrey Beauclerk 5th Duke St Albans and Catherine Ponsonby Duchess St Albans. They were half third cousins. He a great x 2 grandson of King Charles II of England Scotland and Ireland. 
On 15 Aug 1816 Joshua Vanneck 1st Baron Huntingfield (age 70) died. His son Joshua Vanneck 2nd Baron Huntingfield (age 38) succeeded 2nd Baron Huntingfield of Heveningham Hall in Suffolk, 4th Baronet Vanneck of Putney.
On 15 Aug 1824 Louis II Grand Duke of Baden was born to Leopold Grand Duke of Baden (age 33) and Princess Sophie of Sweden (age 23). He a great x 3 grandson of King George II of Great Britain and Ireland.
On 15 Aug 1825 William John Pepys 3rd Earl of Cottenham was born to Charles Christopher Pepys 1st Earl of Cottenham (age 44) and Charlotte Maria Wingfield.
On 15 Aug 1835 George V King Hanover (age 16) was appointed 675th Knight of the Garter by King William IV of the United Kingdom (age 69).
On 15 Aug 1837 Edward Turnour 5th Earl Winterton was born.
On 15 Aug 1846 Benjamin Bloomfield 1st Baron Bloomfield (age 78) died. His son John Arthur Douglas Bloomfield 1st and 2nd Baron Bloomfield (age 43) succeeded 2nd Baron Bloomfield of Ciamhaltha in County Tipperary. Georgiana Liddell Baroness Bloomfield (age 24) by marriage Baroness Bloomfield of Ciamhaltha in County Tipperary.
On 15 Aug 1855 Edward Seymour 11th Duke Somerset (age 80) died at Somerset House 40 Park Lane. He was buried at Kensal Green Cemetery. His son Edward Adolphus Seymour 12th Duke Somerset (age 50) succeeded 12th Duke Somerset 4C 1547, 10th Baronet Seymour of Berry Pomeroy. Jane Georgiana Sheridan Duchess Somerset (age 45) by marriage Duchess Somerset.
On 15 Aug 1866 Henry Alexander Gordon Howard 4th Earl of Effingham was born to Henry Howard 3rd Earl of Effingham (age 29).NOTEXT
On 15 Aug 1874 Bishop Charles Richard Sumner died.
On 15 Aug 1876 Henry Lowther 3rd Earl Lonsdale (age 58) died. His son George Henry Lowther 4th Earl Lonsdale (age 20) succeeded 4th Earl Lonsdale 2C 1807, 5th Viscount Lowther, 5th Baron Lowther.
On 15 Aug 1902 John Gage Prendergast 5th Viscount Gort (age 53) died. His son John Standish Surtees Prendergast 6th Viscount Gort (age 16) succeeded 6th Viscount Gort.
On 15 Aug 1924 Francis Knollys 1st Viscount Knollys (age 87) died.
On 15 Aug 1924 Charles Henry Wellesley Wilson 2nd Baron Nunburnholme (age 49) died. His son Charles John Wilson 3rd Baron Nunburnholme (age 20) succeeded 3rd Baron Nunburnholme 1C 1906.
On 15 Aug 1967 James Richard Stanhope 7th Earl Stanhope 13th Earl Chesterfield (age 86) died without issue. Earl Stanhope, Earl Chesterfield 1C 1628 and Baron Stanhope of Shelford in Nottinghamshire extinct.
