In 1347 [her future brother-in-law] Edmund Fitzalan (age 20) and Sybil Montagu were married. The difference in their ages was 22 years. She the daughter of William Montagu 1st Earl Salisbury (age 46) and Catherine Grandison Countess of Salisbury (age 43). He the son of Richard Fitzalan 10th Earl Arundel 8th Earl Surrey (age 41) and Isabel Despencer Countess Arundel (age 35). He a great x 2 grandson of King Edward "Longshanks" I of England.

In or before 1350 [her father] John Maltravers and [her mother] Gwenllian Unknown were married. He a great x 4 grandson of King John "Lackland" of England.

On 13 Apr 1358 Henry Grey (age 27) and [her future sister-in-law] Joan Cobham (age 13) were married at Sternborough, Kent. She a great x 5 granddaughter of King John "Lackland" of England.

On 17 Feb 1359 John Fitzalan 1st Baron Arundel Baron Maltravers (age 11) and Eleanor Maltravers 2nd Baroness Maltravers Baroness Arundel and Cobham (age 14) were married. He the son of Richard Fitzalan 10th Earl Arundel 8th Earl Surrey (age 53) and Eleanor Plantagenet Countess Arundel and Surrey (age 40). He a great x 2 grandson of King Henry III of England. She a great x 5 granddaughter of King John "Lackland" of England.

Before 1361 [her brother-in-law] Henry Beaumont 3rd Baron Beaumont (age 20) and Margaret Vere Baroness Devereux and Beaumont were married. She by marriage Baroness Beaumont. She the daughter of John de Vere 7th Earl of Oxford and Maud Badlesmere Countess of Oxford (age 52). He the son of John Beaumont 2nd Baron Beaumont and Eleanor Plantagenet Countess Arundel and Surrey (age 42). He a great x 2 grandson of King Henry III of England. She a great x 5 granddaughter of King Henry "Curtmantle" II of England.

In 1368 [her future husband] Reginald Cobham 2nd Baron Cobham (age 19) and Elizabeth Stafford Baroness Cobham, Ferrers and Strange (age 28) were married at Lingfield, Surrey. She by marriage Baroness Cobham. She the daughter of Ralph Stafford 1st Earl Stafford (age 66) and Margaret Audley Countess Stafford. He a great x 5 grandson of King John "Lackland" of England. She a great x 2 granddaughter of King Edward "Longshanks" I of England.

In 1380 Reginald Cobham 2nd Baron Cobham (age 31) and Eleanor Maltravers 2nd Baroness Maltravers Baroness Arundel and Cobham (age 35) were married. She by marriage Baroness Cobham. They were second cousins. He a great x 5 grandson of King John "Lackland" of England. She a great x 5 granddaughter of King John "Lackland" of England.

Before 01 Aug 1385 [her son] John Fitzalan Baron Maltravers 2nd Baron Arundel (age 20) and [her daughter-in-law] Elizabeth Despencer Baroness Zouche, Harringworth, Maltravers and Arundel were married. She by marriage Baroness Maltravers, Baroness Arundel. They were half third cousins. He a great x 3 grandson of King Henry III of England. She a great x 3 granddaughter of King Edward "Longshanks" I of England.

Around 1394 [her son-in-law] William Ros 6th Baron Ros Helmsley (age 24) and [her daughter] Margaret Fitzalan Baroness Ros Helmsley (age 22) were married. She by marriage Baroness Ros Helmsley. She brought a 40 mark annuity to the marriage awarded to her by King Richard II of England (age 26) following the death of his wife Anne of Bohemia Queen Consort England (age 27) in whose household she had been. She the sister of the [her former brother-in-law] Earl of Arundel (age 48). He the son of Thomas Ros 4th Baron Ros Helmsley and Beatrice Stafford Countess Desmond (age 53). He a great x 3 grandson of King Edward "Longshanks" I of England. She a great x 3 granddaughter of King Henry III of England.

William Echingham and [her daughter] Joan Fitzalan were married. She a great x 3 granddaughter of King Henry III of England.