Euphemia 6th Countess of Ross was born to William 5th Earl Ross.
On 13th September 1366 Walter Leslie Earl of Ross and Euphemia 6th Countess of Ross were married. She the daughter of William 5th Earl Ross.
In 1372 [her father] William 5th Earl Ross died. His daughter Euphemia succeeded 6th Countess Ross. [her husband] Walter Leslie Earl of Ross by marriage Earl Ross.
On 24 or 25th February 1382 Alexander "The Wolf of Badenoch" Stewart 3rd Earl Buchan [aged 39] and Euphemia 6th Countess of Ross were married. He by marriage Earl Ross. She the daughter of William 5th Earl Ross. He the son of King Robert II of Scotland [aged 65] and Elizabeth Mure Queen Consort Scotland. They were second cousin once removed. He a great x 4 grandson of King John of England.
Before March 1386 [her brother-in-law] David Stewart 3rd Earl Strathearn 1st Earl Caithness [aged 30] and Eupheme Lindsay Countess Strathearn Caithness [aged 24] were married. She by marriage Countess Caithness. He the son of [her father-in-law] King Robert II of Scotland [aged 69] and [her aunt] Euphemia Ross Queen Consort Scotland.
Around March 1386 [her brother-in-law] David Stewart 3rd Earl Strathearn 1st Earl Caithness [aged 30] died. His daughter Eupheme succeeded 2nd Countess Strathearn, 2nd Countess Caithness.
Before 1387 David Lindsay 1st Earl Crawford [aged 26] and [her sister-in-law] Elizabeth Stewart Countess Crawford [aged 24] were married. She the daughter of [her father-in-law] King Robert II of Scotland [aged 70] and [her aunt] Euphemia Ross Queen Consort Scotland. They were half first cousin once removed. She a great x 4 granddaughter of King John of England.
On 15th February 1390 Alexander Keith [aged 50] and [her sister-in-law] Marjorie Stewart Countess Moray [aged 42] were married. She the daughter of [her father-in-law] King Robert II of Scotland [aged 73] and Elizabeth Mure Queen Consort Scotland.
On 19th April 1390 [her father-in-law] King Robert II of Scotland [aged 74] died at Dundonald Castle, Dundonald. He was buried at Scone Abbey [Map]. His son [her brother-in-law] Robert [aged 53] succeeded III King Scotland. Annabella Drummond Queen Consort Scotland [aged 40] by marriage Queen Consort Scotland. His son David succeeded 3rd Earl Strathearn.
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On 5th or 15th December 1392 Alexander "The Wolf of Badenoch" Stewart 3rd Earl Buchan [aged 49] and Euphemia 6th Countess of Ross were divorced.
In 1394 [her former brother-in-law] Robert Stewart 1st Duke Albany [aged 54] was created 1st Earl Buchan. Muriella Keith Duchess Albany [aged 36] by marriage Countess Buchan.
After 5th September 1394 Euphemia 6th Countess of Ross died. She was buried at Fortrose Cathedral.
In 1405 [her former husband] Alexander "The Wolf of Badenoch" Stewart 3rd Earl Buchan [aged 62] died.
Kings Wessex: Great x 9 Grand Daughter of King Edmund "Ironside" I of England
Kings England: Great x 7 Grand Daughter of King Henry I "Beauclerc" England
Kings Scotland: Great x 6 Grand Daughter of King David I of Scotland
Kings France: Great x 10 Grand Daughter of Hugh I King of the Franks
Kings Duke Aquitaine: Great x 14 Grand Daughter of Ranulf I Duke Aquitaine
Great x 1 Grandfather: William Earl of Ross
Grandfather: Hugh 4th Earl Ross
father: William 5th Earl Ross 5 x Great Grandson of King David I of Scotland
Great x 4 Grandfather: William Bruce 3rd Lord Annandale
Great x 3 Grandfather: Robert Bruce 4th Lord Annandale
Great x 4 Grandmother: Christina Unknown Lady Annandale
Great x 2 Grandfather: Robert Bruce 5th Lord Annandale 2 x Great Grandson of King David I of Scotland
Great x 4 Grandfather: David Dunkeld 8th Earl Huntingdon 
Grandson of King David I of Scotland
Great x 3 Grandmother: Isabel "the Scot" Dunkeld Lady Annandale Great Granddaughter of King David I of Scotland
Great x 4 Grandmother: Matilda Gernon Countess Huntingdon 2 x Great Granddaughter of King Henry I "Beauclerc" England
Great x 1 Grandfather: Robert Bruce Earl Carrick 3 x Great Grandson of King David I of Scotland
Great x 4 Grandfather: Richard Clare 3rd Earl Hertford 
Great x 3 Grandfather: Gilbert Clare 5th Earl Gloucester 4th Earl Hertford 2 x Great Grandson of King Henry I "Beauclerc" England
Great x 4 Grandmother: Amice Fitzrobert Countess Hertford Great Granddaughter of King Henry I "Beauclerc" England
Great x 2 Grandmother: Isabel Clare Lady Annandale 3 x Great Granddaughter of King Henry I "Beauclerc" England
Great x 4 Grandfather: William Marshal 1st Earl Pembroke 
Great x 3 Grandmother: Isabel Marshal Countess Cornwall, Gloucester and Hertford 6 x Great Granddaughter of Hugh I King of the Franks
Great x 4 Grandmother: Isabel Clare Countess Pembroke 5 x Great Granddaughter of Hugh I King of the Franks
Grandmother: Matilda Bruce Countess Ross 4 x Great Granddaughter of King David I of Scotland
Great x 2 Grandfather: Niall Carrick 2nd Earl Carrick
Great x 1 Grandmother: Marjorie Carrick 3rd Countess Carrick 3 x Great Granddaughter of King David I of Scotland
Great x 4 Grandfather: Alan Fitzwalter 2nd High Steward 
Great x 3 Grandfather: Walter Stewart 3rd High Steward
Great x 2 Grandmother: Margaret Stewart Countess Carrick 2 x Great Granddaughter of King David I of Scotland
Great x 4 Grandfather: Gille Críst Angus 4th Earl Angus
Great x 3 Grandmother: Bethóc Angus Great Granddaughter of King David I of Scotland
Great x 4 Grandmother: Marjorie Dunkeld Countess Angus Granddaughter of King David I of Scotland
Euphemia 6th Countess of Ross 6 x Great Granddaughter of King David I of Scotland