Margaret Grey was born in Ruthin Castle, Denbighshire, Wales circa 1397, daughter of Reginald Grey, Knt., 3rd Baron Grey de Ruthyn and Margaret de Ros. She had two full-blooded brothers and two full-blooded sisters. Her elder brother was Sir John Grey, K.G., who married Constance Holland, the granddaughter of John of Gaunt. Her paternal grandparents were Reginald Grey, 2nd Baron Grey de Ruthyn and Alianore Le Strange of Blackmere, and her maternal grandparents were Thomas de Ros, 4th Baron de Ros and Beatrice de Stafford. Her father was a powerful Marcher Lord of the Welsh Marches. It was his dispute with Owain Glyndŵr over a piece of moorland called the common of Croisau that caused the latter's rebellion against King Henry IV of England. Margaret's father was taken prisoner by Glyndŵr in January 1402, and ransomed for the sum of 10,000 marks which was paid by King Henry. In September 1400, the town of Ruthin had been razed to the ground by the Welsh in revenge for the destruction of Glyndŵr's manor of Sycharth by Grey and his men, however, the castle was left standing, and its inhabitants unharmed. On 7 February 1415, her father married secondly, Joan de Astley, by whom he had another six children.
Marriage and issue
On 12 December 1414, Margaret Grey married William Bonville, K.G., first Lord Bonville, eldest son of Sir John Bonville and Elizabeth FitzRoger. She was his first wife. They made their home at the Manor of Chewton Mendip, in Somerset, and had several children:
Philippa Bonville . She married twice, firstly after 12 May 1427, to William Grenville,, of Bideford, Devon and Kilkhampton, Cornwall. Her second marriage, by 1451, was to John Almescombe.
Margaret Bonville, married Sir William Courtenay of Powderham, by whom she had four sons and one daughter:
Elizabeth Bonville, married Sir William Tailboys, by whom she had at least one son, Sir Robert Tailboys. Sir Robert was an ancestor of Virginian colonist, Colonel George Reade and Massachusetts colonist Olive Welby.
Margaret Grey's husband, William Bonville, K.G., first Lord Bonville, was knighted before 1417 during the campaigns in France of King Henry V. He was Knight of the Shire for Somerset in 1421, and for Devon in 1422, 1425 and 1427. In 1423, he was appointed by the king as Sheriff of Devon. On 8 February 1461, he was elected as a Knight of the Garter. Margaret Grey herself died sometime after April 1426 and before October 1427. Her husband married secondly about 9 October 1427 to Elizabeth Courtenay, the daughter of Edward Courtenay, 3rd Earl of Devon. Lord Bonville and Elizabeth Courtenay had no issue. On 10 March 1449, he received a writ of summons to Parliament as Lord Bonville of Chewton and became 1st Baron Bonville.
