Biography of Isabella Stewart Duchess Brittany 1426-1494

1424 Marriage of James I of Scotland and Joan Beaufort

1437 Assassination of King James I of Scotland

On 04 Apr 1406 [her grandfather] King Robert III of Scotland 1337-1406 (age 69) died at Rothesay Castle, Isle of Bute. His son [her father] King James I of Scotland (age 11) succeeded I King Scotland.

Marriage of James I of Scotland and Joan Beaufort

On 12 Feb 1424 [her father] King James I of Scotland (age 29) and [her mother] Joan Beaufort Queen Consort Scotland (age 20) were married at Southwark Cathedral [Map]. She by marriage Queen Consort Scotland. She the daughter of John Beaufort 1st Marquess Somerset and Dorset and Margaret Holland Duchess Clarence (age 39). He the son of King Robert III of Scotland 1337-1406 and . He a great x 5 grandson of King John "Lackland" of England. She a great granddaughter of King Edward III of England.

In 1426 Isabella Stewart Duchess Brittany was born to King James I of Scotland (age 31) and Joan Beaufort Queen Consort Scotland (age 22). She a great x 2 granddaughter of King Edward III of England.

Assassination of King James I of Scotland

On 21 Feb 1437 [her father] King James I of Scotland (age 42) was assassinated at Blackfriars. He was buried at Carthusian Charterhouse, Perth. His son [her brother] King James II of Scotland (age 6) succeeded II King Scotland. His wife, [her mother] Joan Beaufort Queen Consort Scotland (age 33), managed to escape.

Before 21 Sep 1439 [her step-father] James "Black Knight of Lorn" Stewart (age 44) and [her mother] Joan Beaufort Queen Consort Scotland (age 35) were married. She the daughter of John Beaufort 1st Marquess Somerset and Dorset and Margaret Holland Duchess Clarence (age 54). She a great granddaughter of King Edward III of England.

In 1443 [her daughter] Margaret Montfort Duchess Brittany was born to Francis Montfort I Duke Brittany (age 28) and Isabella Stewart Duchess Brittany (age 17). She a great x 3 granddaughter of King Edward III of England.

In 1444 [her daughter] Marie Montfort was born to Francis Montfort I Duke Brittany (age 29) and Isabella Stewart Duchess Brittany (age 18). She a great x 3 granddaughter of King Edward III of England.

On 15 Jul 1445 [her mother] Joan Beaufort Queen Consort Scotland (age 41) died at Dunbar Castle, Dunbar. She was buried at Perth Charterhouse.

Before 29 Jun 1463 [her son-in-law] Francis Montfort II Duke Brittany (age 30) and [her daughter] Margaret Montfort Duchess Brittany (age 20) were married. She by marriage Duchess Brittany 1364 War of Montfort. She the daughter of Francis Montfort I Duke Brittany and Isabella Stewart Duchess Brittany 1426-1494 (age 37). They were first cousin once removed. He a great x 4 grandson of King Henry III of England. She a great x 3 granddaughter of King Edward III of England.

In 1469 [her daughter] Margaret Montfort Duchess Brittany (age 26) died.

On 13 Oct 1494 Isabella Stewart Duchess Brittany (age 68) died.

Francis Montfort I Duke Brittany and Isabella Stewart Duchess Brittany were married. She by marriage Duchess Brittany. She the daughter of King James I of Scotland and Joan Beaufort Queen Consort Scotland. He a great x 4 grandson of King Henry III of England. She a great x 2 granddaughter of King Edward III of England.

Family Trees of Isabella Stewart Duchess Brittany 1426-1494

Paternal Family Tree: Stewart

Maternal Family Tree: Aoife NI Diarmait Macmurrough Countess Pembroke and Buckingham 1145-1188

Descendants Family Trees:

Royal Ancestors of Isabella Stewart Duchess Brittany 1426-1494

Kings Wessex: Great x 11 Grand Daughter of King Edmund "Ironside" I of England

Kings Gwynedd: Great x 7 Grand Daughter of Owain "Great" King Gwynedd 1100-1170

Kings Seisyllwg: Great x 13 Grand Daughter of Hywel "Dda aka Good" King Seisyllwg King Deheubarth

Kings Powys: Great x 8 Grand Daughter of Maredudd ap Bleddyn King Powys 1047-1132

Kings England: Great x 2 Grand Daughter of King Edward III of England

Kings Scotland: Great x 3 Grand Daughter of Robert "The Bruce" I King Scotland

Kings Franks: Great x 8 Grand Daughter of Louis VII King Franks

Kings France: Great x 4 Grand Daughter of Philip "The Fair" IV King France

Ancestors of Isabella Stewart Duchess Brittany 1426-1494

Great x 4 Grandfather: Alexander Stewart 4th High Steward

Great x 3 Grandfather: James Stewart 5th High Steward

Great x 2 Grandfather: Walter Stewart 6th High Steward

Great x 1 Grandfather: King Robert II of Scotland 3 x Great Grand Son of King John "Lackland" of England

Great x 4 Grandfather: Robert Bruce Earl Carrick 1243-1304 4 x Great Grand Son of King Henry I "Beauclerc" England

Great x 3 Grandfather: Robert "The Bruce" I King Scotland 5 x Great Grand Son of King Henry I "Beauclerc" England

Great x 4 Grandmother:

Great x 2 Grandmother: Marjory Bruce 2 x Great Grand Daughter of King John "Lackland" of England

Great x 4 Grandfather:

Great x 3 Grandmother: Isabella Mar Great Grand Daughter of King John "Lackland" of England

Great x 4 Grandmother: Elen ferch Llewellyn Aberffraw Countess Huntingdon and Mar Grand Daughter of King John "Lackland" of England

GrandFather: King Robert III of Scotland 1337-1406 4 x Great Grand Son of King John "Lackland" of England

Great x 2 Grandfather: Adam Mure

Great x 1 Grandmother:

Father: King James I of Scotland 5 x Great Grand Son of King John "Lackland" of England

Great x 2 Grandfather: Malcolm Drummond

Great x 1 Grandfather: John Drummond of Stobhall 11th Thane of Lennox

GrandMother:

Isabella Stewart Duchess Brittany 1426-1494 2 x Great Grand Daughter of King Edward III of England

Great x 4 Grandfather: King Edward "Longshanks" I of England Son of King Henry III of England

Great x 3 Grandfather: King Edward II of England Son of King Edward "Longshanks" I of England

Great x 4 Grandmother: Eleanor of Castile Queen Consort England 2 x Great Grand Daughter of King Henry "Curtmantle" II of England

Great x 2 Grandfather: King Edward III of England Son of King Edward II of England

Great x 4 Grandfather: Philip "The Fair" IV King France 3 x Great Grand Son of King Henry "Curtmantle" II of England

Great x 3 Grandmother: Isabella of France Queen Consort England 4 x Great Grand Daughter of King Henry "Curtmantle" II of England

Great x 4 Grandmother: Joan Blois I Queen Navarre 1273-1305 3 x Great Grand Daughter of King Henry "Curtmantle" II of England

Great x 1 Grandfather: John of Gaunt 1st Duke Lancaster Son of King Edward III of England

Great x 4 Grandfather: John Hainault II Count Hainault II Count Holland 1247-1304 5 x Great Grand Son of King William "Conqueror" I of England

Great x 3 Grandfather: William Hainault I Count Hainault III Count Avesnes III Count Holland II Count Zeeland 6 x Great Grand Son of King William "Conqueror" I of England

Great x 4 Grandmother: Philippa Luxemburg Countess Hainault and Holland 1252-1311 5 x Great Grand Daughter of King William "Conqueror" I of England

Great x 2 Grandmother: Philippa of Hainault Queen Consort England 5 x Great Grand Daughter of King Henry "Curtmantle" II of England

Great x 4 Grandfather: Charles Valois I Count Valois 3 x Great Grand Son of King Henry "Curtmantle" II of England

Great x 3 Grandmother: Joan Valois Countess Zeeland Holland Avesnes and Hainault 4 x Great Grand Daughter of King Henry "Curtmantle" II of England

Great x 4 Grandmother: Margaret Capet Countess Valois 1273-1299 3 x Great Grand Daughter of King Henry "Curtmantle" II of England

GrandFather: John Beaufort 1st Marquess Somerset and Dorset Grand Son of King Edward III of England

Great x 2 Grandfather: Giles "Payne" Roet

Great x 1 Grandmother: Katherine Roet Duchess Lancaster

Mother: Joan Beaufort Queen Consort Scotland Great Grand Daughter of King Edward III of England

Great x 4 Grandfather: Robert de Holand of Upholland

Great x 3 Grandfather: Robert Holland 1st Baron Holand

Great x 2 Grandfather: Thomas Holland 1st Earl Kent 4 x Great Grand Son of King Henry "Curtmantle" II of England

Great x 4 Grandfather: Alan Zouche 1st Baron Zouche Ashby 2 x Great Grand Son of King Henry "Curtmantle" II of England

Great x 3 Grandmother: Maud Zouche Baroness Holand 3 x Great Grand Daughter of King Henry "Curtmantle" II of England

Great x 4 Grandmother: Eleanor Segrave

Great x 1 Grandfather: Thomas Holland 2nd Earl Kent Great Grand Son of King Edward "Longshanks" I of England

Great x 4 Grandfather: King Edward "Longshanks" I of England Son of King Henry III of England

Great x 3 Grandfather: Edmund of Woodstock 1st Earl Kent Son of King Edward "Longshanks" I of England

Great x 4 Grandmother: Margaret of France Queen Consort England 1279-1318 3 x Great Grand Daughter of King Henry "Curtmantle" II of England

Great x 2 Grandmother: Joan "Fair Maid of Kent" Princess Wales Grand Daughter of King Edward "Longshanks" I of England

Great x 4 Grandfather: John Wake 1st Baron Wake of Liddell 2 x Great Grand Son of King John "Lackland" of England

Great x 3 Grandmother: Margaret Wake Countess Kent 3 x Great Grand Daughter of King John "Lackland" of England

Great x 4 Grandmother: Joan Fiennes Baroness Wake Liddell 4 x Great Grand Daughter of King Henry "Curtmantle" II of England

GrandMother: Margaret Holland Duchess Clarence 2 x Great Grand Daughter of King Edward "Longshanks" I of England

Great x 4 Grandfather: Richard Fitzalan 8th Earl Arundel 3 x Great Grand Son of King John "Lackland" of England

Great x 3 Grandfather: Edmund Fitzalan 9th Earl Arundel 4 x Great Grand Son of King John "Lackland" of England

Great x 4 Grandmother: 6 x Great Grand Daughter of King William "Conqueror" I of England

Great x 2 Grandfather: Richard Fitzalan 10th Earl Arundel 8th Earl Surrey 5 x Great Grand Son of King John "Lackland" of England

Great x 4 Grandfather: William Warenne

Great x 3 Grandmother: Alice Warenne Countess Arundel

Great x 4 Grandmother: Joan Vere

Great x 1 Grandmother: Alice Fitzalan Countess Kent 1350-1416 2 x Great Grand Daughter of King Henry III of England

Great x 4 Grandfather: Edmund "Crouchback" Plantagenet 1st Earl of Leicester 1st Earl Lancaster Son of King Henry III of England

Great x 3 Grandfather: Henry Plantagenet 3rd Earl of Leicester 3rd Earl Lancaster Grand Son of King Henry III of England

Great x 4 Grandmother: Blanche Capet Queen Navarre 1248-1302 2 x Great Grand Daughter of King Henry "Curtmantle" II of England

Great x 2 Grandmother: Eleanor Plantagenet Countess Arundel and Surrey Great Grand Daughter of King Henry III of England

Great x 4 Grandfather: Patrick Chaworth

Great x 3 Grandmother: Maud Chaworth