Around 1712 [his father] Thomas Brereton aka Salusbury [aged 28] and [his mother] Mary Trelawny [aged 23] were married. They had four sons and a daughter.
Around 1715 Owen Brereton aka Salusbury-Brereton was born to Thomas Brereton aka Salusbury [aged 31] and Mary Trelawny [aged 26].
Around 1730 [his mother] Mary Trelawny [aged 41] died.
Around 1731 [his father] Thomas Brereton aka Salusbury [aged 47] and Catherine Lloyd were married. There was no issue from the marriage.
On 26th December 1734 Salusbury Lloyd of Leadbrook in Flintshire died. He left his estates, including Shotwick Park, Cheshire, to his daughter Catherine Lloyd and her husband [his father] Thomas Brereton aka Salusbury [aged 50] since his son had predeceased him.
In September 1742 Owen Brereton aka Salusbury-Brereton [aged 27] was appointed Recorder of Liverpool which office he held for fifty-six years until he died in 1798.
On 9th March 1756 [his father] Thomas Brereton aka Salusbury [aged 72] died. His son Owen Brereton aka Salusbury-Brereton [aged 41] inherited Shotwick Park, Cheshire.
In 1762 Owen Brereton aka Salusbury-Brereton [aged 47] was elected Fellow of the Royal Society.
In 1763 Owen Brereton aka Salusbury-Brereton [aged 48] was elected Fellow of the Society of Antiquaries of London.
Westminster Chronicle of King Richard II, 1381-1394
The Westminster Chronicle is one of the most vivid and important narrative sources for the reign of Richard II. Written by an anonymous chronicler closely connected with Westminster Abbey, it covers the years 1381 to 1394, from the Peasants’ Revolt to the political tensions, court ceremonies, diplomatic negotiations, royal progresses, and public crises of Richard’s later reign. Rich in detail the chronicle records major events such as the conflicts between the King and Lords Appellant, King and the City of London, negotiations with France and Scotland, the death and funeral of Queen Anne of Bohemia, the illness of Charles VI of France, and the changing fortunes of leading nobles including John of Gaunt, Thomas of Gloucester, Robert de Vere, and the Earl of Arundel. The Chronicle offers readers a remarkable window into late fourteenth-century England, combining political observation, courtly spectacle, urban drama, ecclesiastical affairs, and moral judgement. It is an essential source for anyone interested in medieval monarchy, London, Westminster, and the troubled reign of Richard II.
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In 1775 Owen Brereton aka Salusbury-Brereton [aged 60] was appointed Constable of Flint Castle.
In 1775 Owen Brereton aka Salusbury-Brereton [aged 60] was elected MP Ilchester which seat he held until 1780.
Archaeologia Volume 9 Appendix. 22nd May 1788. Owen Salusbury Brereton [aged 73], Esq. V. P. exhibited a beautiful coloured drawing of a window in the parish-church of Brereton [Map], one of the oldest in the county-palatine of Chester; but the date of it is not exactly known1. In the lower compartments are four figures representing the four persons who slew Thomas Becket at the high altar in Canterbury cathedral, 1170. They are in complete armour, with drawn swords in their hands, and on pendant scrolls are inscribed their names; William Tracy, Richard Britton, Reginald Fitzurse, and Hugh Morrel. A fifth figure, exactly correiponding with these, in the centre compartments, bears, on the like scroll, these words, Martyrum Thomam. In three compartments of the Upper division of the window are two priests [Note. In the original the word priests is crossed out, and the word "saints" written in the margin.], and between them a figure episcopally habited, most probably intended for Becket himself. Under the five lower figures, after their names are these words tended for two hexameter lines:
Martyrum Thomam fieri fecere beatum
Anno milleno centeno septuageno.
[Note. The above two lines in Gothic script]
Under these the following inscription represented in the opposite page:
"Left this monument in Glase being in the upper window of the North syde the chauncell of Brereton churche shoulde be broken, I Sir Will'm Brereton, knight, to the end hyt may remayne in memorie to the posteritie, have caused the same to be heare purtred, the 25th of Marche, 1608. W. Brereton."
Note 1. See Pl. XXIII.
Archaeologia Volume 10 Section IV. Some Observations on the Paintings in the Window of Brereton Church [Map]. By the Rev. Samuel Pegge [aged 85], in a Letter to Owen Salusbury Brereton [aged 74], Esq. Vice President. Read Nov. 26, 1789.
On 8th September 1798 Owen Brereton aka Salusbury-Brereton [aged 83] died at his home in Windsor, Berkshire [Map].
On 22nd September 1798 Owen Brereton aka Salusbury-Brereton [deceased] was buried at St George's Chapel, Windsor Castle [Map].
In 1802 William Lewis Trelawny aka Salusbury-Trelawny 8th Baronet [aged 20] assumed the additional surname of Salusbury under Royal licence, as required by a provision in the will of his cousin Owen Brereton aka Salusbury-Brereton. He, Owen Brereton aka Salusbury-Brereton was a son of [his mother] Mary Trelawny who was sister of his grandfather [his uncle] Captain William Trelawny.
Kings Wessex: Great x 21 Grand Son of King Edmund "Ironside" I of England
Kings Gwynedd: Great x 18 Grand Son of Owain "Great" King Gwynedd
Kings Seisyllwg: Great x 24 Grand Son of Hywel "Dda aka Good" King Seisyllwg King Deheubarth
Kings Powys: Great x 19 Grand Son of Maredudd ap Bleddyn King Powys
Kings Godwinson: Great x 23 Grand Son of King Harold II of England
Kings England: Great x 13 Grand Son of King Edward III of England
Kings Scotland: Great x 17 Grand Son of King William I of Scotland
Kings France: Great x 15 Grand Son of King Philip IV of France
Kings Duke Aquitaine: Great x 25 Grand Son of Ranulf I Duke Aquitaine
Kings Spain: Great x 18 Grand Son of Alfonso II King Aragon
Grandfather: Edward Brereton of Chester
father: Thomas Brereton aka Salusbury
Great x 1 Grandfather: John Fletcher of Chester
Grandmother: Mary Fletcher
Owen Brereton aka Salusbury-Brereton 13 x Great Grandson of King Edward III of England
Great x 4 Grandfather: John Trelawny 
Great x 3 Grandfather: Johnathan Trelawny
Great x 4 Grandmother: Anne Reskymer
Great x 2 Grandfather: John Trelawny 1st Baronet 12 x Great Grandson of King John of England
Great x 4 Grandfather: Henry Killigrew 
Great x 3 Grandmother: Elizabeth Killigrew 11 x Great Granddaughter of King John of England
Great x 4 Grandmother: Katherine Cooke 10 x Great Granddaughter of King John of England
Great x 1 Grandfather: Jonathan Trelawny 2nd Baronet 13 x Great Grandson of King John of England
Grandfather: Brigadier-General Henry Trelawny 11 x Great Grandson of King Edward III of England
Great x 4 Grandfather: Edward Seymour 
7 x Great Grandson of King Edward III of England
Great x 3 Grandfather: Edward Seymour 1st Baronet 8 x Great Grandson of King Edward III of England
Great x 4 Grandmother: Margaret Walshe
Great x 2 Grandfather: Edward Seymour 2nd Baronet 9 x Great Grandson of King Edward III of England
Great x 4 Grandfather: Arthur Champernowne
Great x 3 Grandmother: Elizabeth Champernowne Baroness Seymour
Great x 1 Grandmother: Mary Seymour 10 x Great Granddaughter of King Edward III of England
Great x 4 Grandfather: John Killigrew
Great x 3 Grandfather: Henry Killigrew
Great x 2 Grandmother: Dorothy Killigrew Baroness Seymour 11 x Great Granddaughter of King John of England
Great x 4 Grandfather: Anthony Cooke
Great x 3 Grandmother: Katherine Cooke 10 x Great Granddaughter of King John of England
Great x 4 Grandmother: Anne Fitzwilliam 
9 x Great Granddaughter of King John of England
mother: Mary Trelawny 12 x Great Granddaughter of King Edward III of England
Great x 1 Grandfather: Matthew Hals 1676 of Efford in Cornwall
Grandmother: Rebecca Hals