On 24 Jun 1340 Edward III King England (27) attacked the French fleet at anchor during the Battle of Sluys capturing more than 200 ships, killing around 18000 French. The English force included John Beauchamp 1st Baron Beauchamp Warwick (24) , William Bohun 1st Earl Northampton (30) , Henry Scrope 1st Baron Scrope Masham (27) , William Latimer 4th Baron Latimer Corby (10) , John Lisle 2nd Baron Lisle (22) , Ralph Stafford 1st Earl Stafford (38) , Henry of Grosmont 1st Duke Lancaster (30) , Walter Manny 1st Baron Manny (30) and Richard Pembridge (20) . Thomas Monthermer 2nd Baron Monthermer (38) died from wounds.
On 26 Aug 1346 at Crecy during the Battle of Crecy the English army was included: James Audley (28) , Robert Bourchier 1st Baron Bourchier, Bartholomew "The Younger" Burghesh 2nd Baron Burghesh (17) , Reginald Cobham 1st Baron Cobham Sternborough (51) , John Darcy 1st Baron Darcy Knayth (66) , Robert Ferrers 2nd Baron Ferrers Chartley (37) , Richard Scrope 1st Baron Scrope Bolton (19) , William Scrope (21) , Stephen Scrope (21) , William Latimer 4th Baron Latimer Corby (16) , John Lisle 2nd Baron Lisle (28) , Gerard Lisle 1st Baron Lisle (42) , Nicholas Longford (58) , Edward Montagu 1st Baron Montagu, Walter Paveley 4th Baron Burghesh (27) , Michael Poynings 2nd Baron Poynings (28) , Robert Ufford 1st Earl Suffolk (48) , John Vere 7th Earl Oxford (34) , Thomas West (34) , John Willoughby 2nd Baron Willoughby Eresby (43) , John Wingfield (26) , Henry Percy 3rd Baron Percy (25) , Hugh Courtenay 10th Earl Devon (43) (possibly), Walter "Elder" Devereux (37) , John Devereux (44) , Enion Sais Brecon, John Chandos (26) , Richard Pembridge (26) and John Sully (63) .
Before 1351 William Latimer 4th Baron Latimer Corby was knighted
On 20 Jan 1356 Edward I King Scotland (73) surrendered his claim to the Scottish throne to Edward III King England (43) in the presence of William Latimer 4th Baron Latimer Corby (25) [Edward Balliol surrenders his claim to be King Scotland].
On 29 Sep 1364 Battle of Auray decided the Breton Succession in favour of John Montfort V Duke Brittany (25) . The Breton and English army was commanded by John Chandos (44) and included William Latimer 4th Baron Latimer Corby (34) , Miles Stapleton (44) and Hugh Calveley. Charles "Saint" Chatillon Duke Brittany (45) was killed. Bertrand Geusclin (44) surrendered. [Auray].
In 1371 William Latimer 4th Baron Latimer Corby (40) was appointed as Lord Chamberlain of the Household
In 1374 William Latimer 4th Baron Latimer Corby (43) was appointed as Warden of the Cinque Ports
On 28 May 1381 William Latimer 4th Baron Latimer Corby (51) died
GrandFather: William Latimer 2nd Baron Latimer Corby
1G GrandFather: William Latimer 1st Baron Latimer Corby
1G GrandMother: Alicia Ledet
2G GrandFather: Walter Ledet
2G GrandMother: Ermentrude Lisle
3G GrandFather: Robert Lisle
3G GrandMother: Alice Fitzgerald
4G GrandFather: Henry Fitzgerald
4G GrandMother: Ermentrude Ferrers
Mother: Elizabeth Botetort
GrandFather: John Botetort 1st Baron Botetort
GrandMother: Matilda Fitzotes
1G GrandFather: Thomas Fitzotes