23 Jun is in June.
1467 Tournament Bastard of Burgundy
1509 Coronation of Henry VIII and Catherine of Aragon
Anglo-Saxon Chronicle. After 23 Jun 1016. It was within two nights after that the king (age 26) went over at Brentford [Map]; where he fought with the enemy, and put them to flight: but there many of the English were drowned, from their own carelessness; who went before the main army with a design to plunder. After this the king (age 26) went into Wessex, and collected his army; but the enemy soon returned to London, and beset the city without, and fought strongly against it both by water and land. But the almighty God delivered them.
Liber de Antiquis Legibus 1255. 23 Jun 1255. This year, upon the Feast of Saint Eldreda [23 June] which was on a Sunday, the sister (age 14) of the King of Spain (age 33), wife of Sir Edward (age 16), eldest son of his lordship the King (age 47), came to London, and a countless multitude of Bishops, Earls, Barons, Knights, and citizens, went forth from the City to meet her, as also his lordship the King, in person; the City of London being most nobly tapestried and arrayed.
On 23 Jun 1324 Aymer de Valence 2nd Earl Pembroke (age 49) died. He was buried at Westminster Abbey [Map] where his tomb effigy can still be seen as a splendid example of late gothic architecture. Earl Pembroke 3C 1247 extinct.
On 23 Jun 1361 Bishop Thomas Lisle (age 63) died.
On 23 Jun 1467 the Tournament was brought to a premature close following the announcement of the death of the Bastard's (age 46) father Philip "Good" Valois III Duke Burgundy (deceased). 
Around 23 Jun 1484 Bishop Lionel Woodville (age 37) died.
Letters and Papers 1509. 23 Jun 1509. 88. Thomas Earl of Surrey (age 66). To be Marshal of England on 23 and 24 June, the latter day being appointed for the Coronation. S.B. [212.]NOTEXT
On 23 Jun 1509 King Henry VIII of England and Ireland (age 17) created Knights of the Bath ...
Robert Radclyffe 1st Earl of Sussex (age 26)
Henry Scrope 7th Baron Scrope of Bolton (age 27)
George Fitzhugh 7th Baron Fitzhugh (age 23)
William Blount 4th Baron Mountjoy (age 31)
Henry Daubeney 1st Earl Bridgewater (age 15)
Thomas Brooke 8th Baron Cobham (age 39)
Henry Clifford 1st Earl of Cumberland (age 16)
Maurice Berkeley 4th Baron Berkeley (age 42)
Thomas Knyvet (age 24)
Andrew Windsor 1st Baron Windsor (age 42)
Thomas Parr (age 26)
Thomas Boleyn 1st Earl Wiltshire and Ormonde (age 32)
Richard Wentworth 5th Baron Despencer (age 29)
Henry Ughtred 6th Baron Ughtred
Francis Cheney (age 28)
Henry Wyatt (age 49)
George Hastings 1st Earl Huntingdon (age 22)
Sir Thomas Metham of Metham, Yorkshire
Sir Thomas Bedingfield
John Shelton (age 32)
Either Giles Alington (age 26) or his son Giles Alington (age 10).
Sir John Trevanion
Sir William Crowmer
Sir John Heydon of Baconsthorpe in Norfolk
Henry Sacheverell (age 34).
Letters and Papers 1509. 23 Jun 1509. 87. Edward Duke of Buckingham (age 31). To be Great Constable of England on 23 June only, viz., the day preceding the Coronation. S.B. [211.]
Letters and Papers 1528. 23 Jun 1528. R. O. 4413. R. Lord Fitzwater to Wolsey.
Care (deceased) died on Monday last, leaving vacant the stewardship of the duchy of Lancaster in Essex, the constableship of the Castle of Plashe [Map], the keeping of the two parks, and other offices in the King's gift. Asks Wolsey to obtain those above mentioned for him, as they are near his house. Signed.
Letters and Papers 1528. 23 Jun 1528. Love Letters IX. 4410. Henry VIII (age 36) to Anne Boleyn (age 27).
The cause of my writing at this time, good sweetheart, is only to understand of your good health and prosperity, whereof to know I would be as glad as in manner mine own; praying God that (and it be His pleasure) to send us shortly together, for I promise you I long for it, howbeit trust it shall not be long to; and seeing my darling is absent, I can no less do than to send her some flesh representing my name, which is hart's flesh for Henry, prognosticating that hereafter, God willing, you must enjoy some of mine, which, He pleased, I would were now. As touching your sister's (age 29) matter, I have caused Water Welze to write to my Lord my mind therein, whereby I trust that Eve shall not have power to deceive Adam; for surely, whatsoever is said, it cannot so stand with his honor but that he2 must needs take her his natural daughter now in her extreme necessity. No more to you at this time, mine own darling, but that a while I would we were together of an evening. With the hand of yours, &c.
Note 1. So in the Harl. Misc. copy, which seems there to give the right reading. The Pamphleteer reads: "that we shall not have poure to dyslave Adam."
Note 2. Thomas Boleyn 1st Earl Wiltshire and Ormonde (age 51).
Letters and Papers 1528. 23 Jun 1528. 4409. His Highness marvellously commends the French king's religious demeanour on Corpus Christi Day against the damnable behavior of those, worse than Jews, that would do such despite to the blessed images; and he told the gentlemen of his Privy Chamber the whole manner of it, and desired me to read to them the clause concerning it in the Bishop of Bath's letter. When in the Bishop's letter I read the clause, that many noblemen in France were right sorry the king of France had not such a councillor [as Wolsey], the King said, "Yea, by God! I blame them never a deal." He liked the rest of the letter, and the French king's letter to the Pope, and to his ambassador resident in Rome, but thought the latter more effectually worded. He said he would send copies of them to Mistress Ann for her consolation. He likes the French king's letters to the Venetians for Ravenna and Cervia; and thinks, if they are put into the hands of Francis, the Pope will be more compliant, who, he is afraid, is now sticking for fear of the Emperor, by the tarrying of Mr. Stephen's letter. All being read by 11 o'clock at night, he said he would see the news about Spain today; but he has not yet come down. Generally, in going and coming, he turns into my chamber to talk with me about his book.
At this word his Highness came in, asking me how far I had done. Thereupon I put him in mind of the news from Spain, and to sign the king of Scots' letter, which he said he would do soon; and he is gone a-walking. Mr. Cary (deceased), whom I met after he had been with his wife (age 29) at Plashey [Map], is dead of the sweat. Will repair to Wolsey by short stages of ten miles, going by water through London Bridge. No earthly riches could persuade him to travel much now, as nothing causes the sweat more than much travel and the sun. Is worse than he was. Hunsdon, Tuesday, 23 June 1528.
Letters and Papers 1528. 23 Jun 1528. 4408. Thomas Hennege to Wolsey.
"Laud be Jesu, the King's grace is very merry since he came to this house, for there was none fell sick of the sweat since he came hither, and ever after dinner he shoth (shooteth ?) to supper time. This morning is told me that Mistress Ann (age 27) and my Lord of Roxfort (age 25) had the sweat, and was past the danger thereof." Mr. Carre (deceased) begs you to be gracious to his sister, a nun in Wilton Abbey, to be prioress there, according to your promise. Mr. Tuke is here, and lies in the court under the King's privy chamber, so that he may come at the King's pleasure. At every meal the King sends him a dish from his table. The King will tarry here 14 days. Hunsdon, 23 June.
This night, as the King went to bed, word came of the death of William Care (deceased).
On 23 Jun 1567 John Gordon 11th Earl Sutherland (age 42) died at Dunrobin Castle, Dunrobin. His son Alexander Gordon 12th Earl Sutherland (age 15) succeeded 12th Earl Sutherland. Jean Gordon Countess Bothwell and Sutherland (age 21) by marriage Countess Sutherland.
On 23 Jun 1630 William Courtenay 3rd Earl Devon (age 77) died at London. He was buried at Powderham Church Powderham. His son Francis Courtenay 4th Earl Devon (age 54) de jure 4th Earl Devon 5C 1553. Elizabeth Seymour Countess Devon (age 23) by marriage Countess Devon.
On 23 Jun 1643 Edward Dudley 5th Baron Dudley (age 75) died. His granddaughter Frances Sutton 6th Baroness Dudley (age 31) succeeded 6th Baroness Sutton of Dudley. Humble Ward 1st Baron Ward of Birmingham Baron Dudley (age 29) by marriage Baron Sutton of Dudley 1C 1440. Humble Ward 1st Baron Ward of Birmingham Baron Dudley (age 29) by marriage Baron Sutton of Dudley 1C 1440.
Pepy's Diary. 23 Jun 1665. After the Committee was up, my Lord Sandwich (age 39) did take me aside, and we walked an hour alone together in the robe-chamber, the door shut, telling me how much the Duke (age 31) and Mr. Coventry (age 37) did, both in the fleete and here, make of him, and that in some opposition to the Prince (age 45); and as a more private message, he told me that he hath been with them both when they have made sport of the Prince (age 45) and laughed at him: yet that all the discourse of the towne, and the printed relation, should not give him one word of honour my Lord thinks mighty strange; he assuring me, that though by accident the Prince (age 45) was in the van the beginning of the fight for the first pass, yet all the rest of the day my Lord was in the van, and continued so. That notwithstanding all this noise of the Prince (age 45), he had hardly a shot in his side nor a man killed, whereas he hath above 30 in her hull, and not one mast whole nor yard; but the most battered ship of the fleet, and lost most men, saving Captain Smith of "The Mary". That the most the Duke (age 31) did was almost out of gun-shot; but that, indeed, the Duke (age 31) did come up to my Lord's rescue after he had a great while fought with four of them.
Evelyn's Diary. 23 Jun 1665. The Duke of York (age 31) told us that, when we were in fight, his dog sought out absolutely the very securest place in all the vessel. In the afternoon, I saw the pompous reception and audience of El Conde de Molino, the Spanish Ambassador, in the Banqueting-house [Map], both their Majesties [Note. King Charles II of England Scotland and Ireland (age 35) and Catherine of Braganza Queen Consort England (age 26)] sitting together under the canopy of state.
Before 23 Jun 1686 Mary Beale aka Cradock (age 53). Portrait of William Coventry (age 58).
On 23 Jun 1689 George Henry Hay 8th Earl Kinnoull was born to Thomas Hay 7th Earl Kinnoull (age 29).
On 23 Jun 1713 John Shute aka Barrington 1st Viscount Barrington (age 35) and Anne Daines Viscountess Barrington (age 23) were married.
On 23 Jun 1716 Fletcher Norton 1st Baron Grantley was born to Thomas Norton of Grantley in Yorkshire (age 33).
On 23 Jun 1717 John Verney 1st Viscount Fermanagh (age 76) died. His son Ralph Verney 1st Earl Verney (age 34) succeeded 2nd Viscount Fermanagh, 2nd Baron Verney of Belturbet in Cavan, 3rd Baronet Verney of Middle Claydon in Buckinghamshire.
On 23 Jun 1719 Christopher Wandesford 2nd Viscount Castlecomer (age 35) died. His son Christopher Wandesford 3rd Viscount Castlecomer (age 2) succeeded 3rd Viscount Castlecomer, 3rd Baron Wandesford, 4th Baronet Wandesford of Kirklington.
On 23 Jun 1733 William Villiers 3rd Earl Jersey (age 26) and Anne Egerton Duchess Bedford were married. She by marriage Countess Jersey. She the daughter of Scroop Egerton 1st Duke Bridgewater (age 51) and Elizabeth Churchill Countess Bridgewater. He the son of William Villiers 2nd Earl Jersey.
On 23 Jun 1741 William Trench 1st Earl of Clancarty was born.
On 23 Jun 1762 Charles Cornwallis 1st Earl Cornwallis (age 62) died. His son Charles Cornwallis 1st Marquess Cornwallis (age 23) succeeded 2nd Earl Cornwallis.
On 23 Jun 1768 William Henry Cavendish-Scott-Bentinck 4th Duke Portland was born to William Cavendish-Bentinck 3rd Duke Portland (age 30) and Dorothy Cavendish 3rd Duchess Portland (age 17).
On 23 Jun 1774 Edward Smith-Stanley 12th Earl of Derby (age 21) and Elizabeth Hamilton Countess Derby (age 21) were married. She the daughter of James Hamilton 6th Duke Hamilton 3rd Duke Brandon and Elizabeth Gunning Duchess Hamilton and Argyll (age 40).
On 23 Jun 1785 Charles Augustus North was born to Bishop Brownlow North (age 43) and Henrietta Maria Bannister (age 35).
On 23 Jun 1803 John Russell 6th Duke Bedford (age 36) and Georgiana Gordon Duchess Bedford (age 21) were married. She by marriage Duchess Bedford. She the daughter of Alexander Gordon 4th Duke Gordon (age 60) and Jane Maxwell Duchess Gordon (age 55). He a great x 2 grandson of King Charles II of England Scotland and Ireland. 
On 23 Jun 1829 Hedworth Joliffe 2nd Baron Hylton was born to William Jolliffe 1st Baron Hylton (age 28) and Eleanor Paget.
After 23 Jun 1830 Monument to Hester Hornby.
On 23 Jun 1844 Charles Stanley Monck 4th Viscount Monck (age 24) and Elizabeth Louise Mary Monck were married. She the daughter of Henry Monck 1st Earl of Rathdowne (age 58). They were first cousins.
On 23 Jun 1849 William Henry Paulett 6th Earl Paulett (age 21) and Elizabeth Lavinia Newman Countess Poulett were married.
On 23 Jun 1894 King Edward VIII of the United Kingdom was born to George V King United Kingdom (age 29) and Victoria Mary Teck Queen Consort England (age 27). Coefficient of inbreeding 1.84%.
On 23 Jun 1904 Nigel Reginald Victor Glyn 5th Baron Wolverton was born to Frederic Glyn 4th Baron Wolverton (age 39) and Edith Amelia Ward Baroness Wolverton (age 31).
On 23 Jun 1909 George Poulett 8th Earl Poulett was born to William John Lydston Poulett 7th Earl Poulett (age 25) and Sylvia Storey Countess Poulett (age 19).
On 23 Jun 1945 John Harbord 8th Baron Suffield (age 37) died unmarried. His first cousin once removed Geoffrey Walter Harbord 9th Baron Suffield (age 83) succeeded 9th Baron Suffield, 10th Baronet Harbord of Suffield in Norfolk.
On 23 Jun 1957 Albert Nelson 6th Earl Nelson (age 66) died. His brother Henry Nelson 7th Earl Nelson (age 63) succeeded 7th Earl Nelson of Trafalgar and Merson in Surrey, 7th Viscount Merton.
On 23 Jun 1971 Lyulph Stanley 7th Baron Stanley, 7th Baron Sheffield, 6th Baron Eddisbury (age 55) died. His first cousin Thomas Henry Stanley 8th Baron Stanley, 8th Baron Sheffield, 7th Baron Eddisbury (age 43) succeeded 8th Baron Stanley Alderley, 8th Baron Sheffield of Roscommon in Roscommon, 7th Baron Eddisbury of Winnington in Cheshire, 14th Baronet Stanley of Alderley in Cheshire.
