Paternal Family Tree: Preston
Maternal Family Tree: Mary Molyneux 1642-1673
Mary Preston Marchioness Powis was born to Thomas Preston 3rd Baronet and Mary Molyneux.
In April 1663 [her uncle] John Preston 2nd Baronet [aged 25] died. His brother [her father] Thomas [aged 23] succeeded 3rd Baronet Preston of Furness in Lancashire.
In or before 1673 [her father] Thomas Preston 3rd Baronet [aged 32] and [her mother] Mary Molyneux [aged 30] were married.
In 1673 [her mother] Mary Molyneux [aged 31] died.
In or before 1685 [her brother-in-law] Hugh Clifford 2nd Baron Clifford Chudleigh [aged 21] and [her sister] Anne Preston Baroness Clifford were married. She by marriage Baroness Clifford of Chudleigh in Devon.
Around 1695. Charles D'Agar [aged 26] (attributed). Portrait of Mary Preston Marchioness Powis.
Around 1695 William Herbert 2nd Marquess Powis [aged 35] and Mary Preston Marchioness Powis were married. He the son of William Herbert 1st Marquess Powis [aged 69] and Elizabeth Somerset Marchioness Powis. They were third cousins.
On 2nd June 1696 [her father-in-law] William Herbert 1st Marquess Powis [aged 70] died. His son [her husband] William [aged 36] succeeded 2nd Marquess Powis, 2nd Earl Powis, 4th Baron Powis of Powis Castle in Powys, 3rd Baronet Powis of Red Castle in Montgomeryshire. Mary Preston Marchioness Powis by marriage Marchioness Powis. Mary Preston Marchioness Powis by marriage Marchioness Powis.
In 1698 [her son] William Herbert 3rd Marquess Powis was born to [her husband] William Herbert 2nd Marquess Powis [aged 38] and Mary Preston Marchioness Powis.
Annals of the six Kings of England by Nicholas Trivet
Translation of the Annals of the Six Kings of England by that traces the rise and rule of the Angevin aka Plantagenet dynasty from the mid-12th to early 14th century. Written by the Dominican scholar Nicholas Trivet, the work offers a vivid account of English history from the reign of King Stephen through to the death of King Edward I, blending political narrative with moral reflection. Covering the reigns of six monarchs—from Stephen to Edward I—the chronicle explores royal authority, rebellion, war, and the shifting balance between crown, church, and nobility. Trivet provides detailed insight into defining moments such as baronial conflicts, Anglo-French rivalry, and the consolidation of royal power under Edward I, whose reign he describes with particular immediacy. The Annals combines careful year-by-year reporting with thoughtful interpretation, presenting history not merely as a sequence of events but as a moral and political lesson. Ideal for readers interested in medieval history, kingship, and the origins of the English state, this chronicle remains a valuable and accessible window into the turbulent world of the Plantagenet kings.
Available at Amazon in eBook and Paperback format.
After 1698 [her son] Edward Herbert was born to [her husband] William Herbert 2nd Marquess Powis [aged 38] and Mary Preston Marchioness Powis. He married 1734 his fourth cousin once removed Henrietta Waldegrave, daughter of James Waldegrave 1st Earl Waldegrave and Mary Webb, and had issue.
On 2nd March 1699 William Maxwell 5th Earl Nithsale and [her sister-in-law] Winifred Herbert Countess Nithsdale [aged 19] were married. She by marriage Countess Nithsdale. She the daughter of [her father-in-law] William Herbert 1st Marquess Powis and Elizabeth Somerset Marchioness Powis. He the son of Robert Maxwell 4th Earl Nithsdale and Lucy Douglas Countess Nithsdale [aged 55].
Around 1705. Michael Dahl [aged 46]. Portrait of Mary Preston Marchioness Powis. Walmer Castle [Map].
Around 1705. Michael Dahl [aged 46]. Portrait of Mary Preston Marchioness Powis. Powis Castle.
In 1706 [her daughter] Theresa Herbert Lady Throckmorton was born to [her husband] William Herbert 2nd Marquess Powis [aged 46] and Mary Preston Marchioness Powis. She married 1721 Robert Throckmorton 4th Baronet, son of Robert Throckmorton 3rd Baronet and Mary Yate Lady Throckmorton, and had issue.
On 27th May 1709 [her father] Thomas Preston 3rd Baronet [aged 69] died. Baronet Preston of Furness in Lancashire extinct.
Around 1721 [her son-in-law] Robert Throckmorton 4th Baronet [aged 18] and Theresa Herbert Lady Throckmorton [aged 15] were married. She the daughter of William Herbert 2nd Marquess Powis [aged 61] and Mary Preston Marchioness Powis.
On 17th June 1723 [her daughter] Theresa Herbert Lady Throckmorton [aged 17] died.
On 8th January 1724 Mary Preston Marchioness Powis died.
On 22nd October 1745 [her former husband] William Herbert 2nd Marquess Powis [aged 85] died. His son William [aged 47] succeeded 3rd Marquess Powis, 3rd Earl Powis, 5th Baron Powis of Powis Castle in Powys, 4th Baronet Powis of Red Castle in Montgomeryshire.
[her daughter] Mary Herbert was born to William Herbert 2nd Marquess Powis and Mary Preston Marchioness Powis.
[her daughter] Charlotte Herbert was born to William Herbert 2nd Marquess Powis and Mary Preston Marchioness Powis.
Jean de Waurin's Chronicle of England Volume 6 Books 3-6: The Wars of the Roses
Jean de Waurin was a French Chronicler, from the Artois region, who was born around 1400, and died around 1474. Waurin’s Chronicle of England, Volume 6, covering the period 1450 to 1471, from which we have selected and translated Chapters relating to the Wars of the Roses, provides a vivid, original, contemporary description of key events some of which he witnessed first-hand, some of which he was told by the key people involved with whom Waurin had a personal relationship.
Available at Amazon in eBook and Paperback format.
[her daughter] Anne Herbert Baroness Arundel Wardour was born to William Herbert 2nd Marquess Powis and Mary Preston Marchioness Powis. She married in or before 1757 her fourth cousin Henry Arundell 6th Baron Arundel, son of Henry Arundell 5th Baron Arundel and Elizabeth Panton.
Kings Wessex: Great x 21 Grand Daughter of King Edmund "Ironside" I of England
Kings Gwynedd: Great x 18 Grand Daughter of Owain "Great" King Gwynedd
Kings Seisyllwg: Great x 24 Grand Daughter of Hywel "Dda aka Good" King Seisyllwg King Deheubarth
Kings Powys: Great x 19 Grand Daughter of Maredudd ap Bleddyn King Powys
Kings England: Great x 13 Grand Daughter of King Edward I of England
Kings Scotland: Great x 16 Grand Daughter of King William I of Scotland
Kings France: Great x 15 Grand Daughter of King Louis VIII of France
Kings Duke Aquitaine: Great x 25 Grand Daughter of Ranulf I Duke Aquitaine
Kings Spain: Great x 17 Grand Daughter of Alfonso VII King Castile VII King Leon
Great x 4 Grandfather: Thomas Preston 
Great x 3 Grandfather: John Preston
Great x 2 Grandfather: Thomas Preston
Great x 1 Grandfather: John Preston
Grandfather: John Preston 1st Baronet
father: Thomas Preston 3rd Baronet
Mary Preston Marchioness Powis 13 x Great Granddaughter of King Edward I of England
Great x 4 Grandfather: Richard Molyneux 
7 x Great Grandson of King Edward I of England
Great x 3 Grandfather: William Molyneux 8 x Great Grandson of King Edward I of England
Great x 4 Grandmother: Eleanor Radclyffe 
Great x 2 Grandfather: Richard Molyneux 1st Baronet 9 x Great Grandson of King Edward I of England
Great x 1 Grandfather: Richard Molyneux 1st Viscount Molyneux 10 x Great Grandson of King Edward I of England
Great x 4 Grandfather: James Gerard of Astley
Great x 3 Grandfather: Gilbert Gerard
Great x 4 Grandmother: Margaret Holcroft
Great x 2 Grandmother: Frances Gerard Lady Molyneux
Great x 4 Grandfather: Thomas Ratclyffe
Great x 3 Grandmother: Anne Ratclyffe
Grandfather: Caryll Molyneux 3rd Viscount Molyneux 11 x Great Grandson of King Edward I of England
mother: Mary Molyneux 12 x Great Granddaughter of King Edward I of England