Margaret Courtenay was the only daughter of William Courtenay, 1st Earl of Devon

William Courtenay, 1st Earl of Devon

William Courtenay, 1st Earl of Devon was the son of Sir Edward Courtenay, 1st Earl of Devon and Elizabeth Courtenay....

 and Catherine of York

Catherine of York

Catherine or Katherine of York was the ninth child and sixth daughter of Edward IV of England and Elizabeth Woodville. From birth to death, she was daughter to Edward IV, sister to Edward V, niece to Richard III, sister-in-law to Henry VII and aunt to Henry VIII.-Early life:She was born in Eltham...

. Her maternal grandparents were Edward IV of England

Edward IV of England

Edward IV was King of England from 4 March 1461 until 3 October 1470, and again from 11 April 1471 until his death. He was the first Yorkist King of England...

 and Elizabeth Woodville

Elizabeth Woodville

Elizabeth Woodville was Queen consort of England as the spouse of King Edward IV from 1464 until his death in 1483. Elizabeth was a key figure in the series of dynastic civil wars known as the Wars of the Roses. Her first husband, Sir John Grey of Groby was killed at the Second Battle of St Albans...

.

Margaret was a younger sister of Henry Courtenay, 1st Marquess of Exeter

Henry Courtenay, 1st Marquess of Exeter

Henry Courtenay, 1st Marquess of Exeter, KG, PC was the eldest son of William Courtenay, 1st Earl of Devon and Catherine of York, and grandson of King Edward IV of England.He was an older brother of Margaret Courtenay...

. Their maternal first cousins included among others Arthur, Prince of Wales

Arthur, Prince of Wales

Arthur Tudor, Prince of Wales was the first son of King Henry VII of England and Elizabeth of York, and therefore, heir to the throne of England. As he predeceased his father, Arthur never became king...

, Margaret Tudor, queen of Scotland

Margaret Tudor

Margaret Tudor was the elder of the two surviving daughters of Henry VII of England and Elizabeth of York, and the elder sister of Henry VIII. In 1503, she married James IV, King of Scots. James died in 1513, and their son became King James V. She married secondly Archibald Douglas, 6th Earl of...

, Henry VIII of England

Henry VIII of England

Henry VIII was King of England from 21 April 1509 until his death. He was Lord, and later King, of Ireland, as well as continuing the nominal claim by the English monarchs to the Kingdom of France...

, and Mary Tudor, queen consort of France

Mary Tudor (queen consort of France)

Mary Tudor was the younger sister of King Henry VIII of England and queen consort of France through her marriage to Louis XII. The latter was more than 30 years her senior. Following his death, which occurred less than two months after her coronation as his third wife, she married Charles Brandon,...

.

She was married to Henry Somerset

Henry Somerset, 2nd Earl of Worcester

Henry Somerset, 2nd Earl of Worcester was an English nobleman, son of Charles Somerset, 1st Earl of Worcester and Elizabeth Herbert, 3rd Baroness Herbert. On his father's death on 15 April 1526, he succeeded as the second Earl of Worcester...

, elder son and heir of Charles Somerset, 1st Earl of Worcester

Charles Somerset, 1st Earl of Worcester

Charles Somerset, 1st Earl of Worcester was the legitimised son of Henry Beaufort, 3rd Duke of Somerset and Joan Hill.-Biography:He was born around 1460 to Henry Beaufort, 3rd Duke of Somerset and Joan Hill...

 and Elizabeth Herbert, 3rd Baroness Herbert

Elizabeth Herbert, 3rd Baroness Herbert

Elizabeth Somerset, 3rd Baroness Herbert was the sole heir and daughter of William Herbert, 2nd Earl of Pembroke, and his first wife, Mary Woodville....

. Local tradition at Devon mentioned her choking on a fishbone at Holcombe

Holcombe, East Devon

Holcombe is a hamlet in the district of East Devon in the English county of Devon.Holcombe is located northwest of the town of Lyme Regis about a mile west of Uplyme.-External links:...

 in 1512. An inscription on her tomb would seem to confirm this. Margaret and Henry Somerset had one daughter Lucy (1524-23 February 1583) who married Queen Catherine Parr's stepson John Nevill, the 4th Baron Latymer (c.1520-22 April 1577) making her the Baroness Latymer. Lucy was also lady-in-waiting to the Queen.

However, there is information of her still living in Richmond after that date. She is mentioned attending to her young first cousin, once removed, Princess Mary Tudor

Mary I of England

Mary I was queen regnant of England and Ireland from July 1553 until her death.She was the only surviving child born of the ill-fated marriage of Henry VIII and his first wife Catherine of Aragon. Her younger half-brother, Edward VI, succeeded Henry in 1547...

 on July 2, 1520. Which seems to be the last record mentioning her alive. Her husband became Earl of Worcester

Earl of Worcester

Earl of Worcester is a title that has been created five times in the Peerage of England. The first creation came in 1138 in favour of the Norman noble Waleran de Beaumont. He was the son of Robert de Beaumont, 1st Earl of Leicester, by Elizabeth of Vermandois, and the twin brother of Robert de...

 in 1526. But by this time his Countess was his second wife Elizabeth Browne, allegedly an ex-mistress of Henry VIII's. Margaret seems to have died in the 1520s but no more specific date is known.

.