Before 1379 [her father] Thomas Clifford 6th Baron Clifford (age 16) and [her mother] Elizabeth Ros Baroness Clifford were married. She the daughter of Thomas Ros 4th Baron Ros Helmsley (age 43) and Beatrice Stafford Countess Desmond (age 37). They were third cousins. He a great x 5 grandson of King John "Lackland" of England. She a great x 3 granddaughter of King Edward "Longshanks" I of England.

Before 15 Oct 1381 William Deincourt 2nd Baron Deincourt (age 23) and [her future sister-in-law] Alice Neville Baroness Deincourt (age 23) were married. She by marriage Baroness Deincourt. She a great x 5 granddaughter of King Henry "Curtmantle" II of England.

In May 1406 [her future husband] Richard of Conisbrough 1st Earl Cambridge (age 20) and Anne Mortimer (age 15) were married. The marriage apparently took place in secret possibly because she was a descendant of King Edward III of England although she wasn't at the time Heir to the Throne of England although their issue would become so. She died five years later. She the daughter of Roger Mortimer 4th Earl March 6th Earl Ulster and Eleanor Holland Countess March and Ulster. He the son of Edmund of Langley 1st Duke York and Isabella of Castile Duchess York. They were first cousin twice removed. He a grandson of King Edward III of England. She a great x 2 granddaughter of King Edward III of England.

Before 24 Jul 1406 John Neville 6th Baron Latimer of Corby (age 24) and Maud Clifford Countess Cambridge (age 17) were married. She by marriage Baroness Latimer of Corby. They were second cousin twice removed. He a great x 5 grandson of King Henry "Curtmantle" II of England. She a great x 4 granddaughter of King Edward "Longshanks" I of England.

After 21 Sep 1411 Richard of Conisbrough 1st Earl Cambridge (age 26) and Maud Clifford Countess Cambridge (age 22) were married. He the son of Edmund of Langley 1st Duke York and Isabella of Castile Duchess York. He a grandson of King Edward III of England. She a great x 4 granddaughter of King Edward "Longshanks" I of England.

On 18 Feb 1413 Thomas Grey of Heton (age 9) and [her step-daughter] Isabel York Countess Eu and Essex (age 4) were married. She the daughter of Richard of Conisbrough 1st Earl Cambridge (age 27) and Anne Mortimer. They were fourth cousins. He a great x 4 grandson of King Edward "Longshanks" I of England. She a great granddaughter of King Edward III of England.

Before 1414 John Neville 6th Baron Latimer of Corby (age 32) and Maud Clifford Countess Cambridge (age 24) were divorced.

Before 25 Apr 1426 Henry Bourchier 2nd Count Eu 1st Earl Essex (age 22) and [her former step-daughter] Isabel York Countess Eu and Essex (age 17) were married. She by marriage Countess Eu. She the daughter of Richard of Conisbrough 1st Earl Cambridge and Anne Mortimer. He the son of William Bourchier 1st Count Eu and Anne of Gloucester Plantagenet Countess Eu and Stafford (age 43). They were second cousins. He a great grandson of King Edward III of England. She a great granddaughter of King Edward III of England.

In Oct 1429 [her former step-son] Richard Plantagenet 3rd Duke York (age 18) and Cecily "Rose of Raby" Neville Duchess York (age 14) were married. She by marriage Countess Cambridge Countess Ulster. She was the youngest sister of Richard's brother-in-arms Richard Neville Earl Salisbury (age 29). She the daughter of Ralph Neville 1st Earl of Westmoreland and Joan Beaufort Countess of Westmoreland (age 50). He the son of Richard of Conisbrough 1st Earl Cambridge and Anne Mortimer. They were second cousins. He a great grandson of King Edward III of England. She a great granddaughter of King Edward III of England.