In or before 1383 William Montagu and [his mother] Elizabeth Fitzalan Duchess Norfolk (age 16) were married. She the daughter of Richard Fitzalan 9th Earl Surrey 11th Earl Arundel (age 36) and Elizabeth Bohun Countess Arundel and Surrey (age 32). He the son of William Montagu 2nd Earl Salisbury (age 54) and Elizabeth Mohun Countess of Salisbury. They were third cousin once removed. She a great x 2 granddaughter of King Edward "Longshanks" I of England.

On 20 Feb 1383 [his father] Thomas Mowbray 1st Duke of Norfolk (age 14) and Elizabeth Strange Countess Nottingham (age 21) were married. She by marriage Countess Nottingham. They were second cousin once removed. He a great x 2 grandson of King Edward "Longshanks" I of England. She a great x 5 granddaughter of King John "Lackland" of England.

Before 17 Sep 1385 [his father] Thomas Mowbray 1st Duke of Norfolk (age 17) and [his mother] Elizabeth Fitzalan Duchess Norfolk (age 19) were married. She by marriage Countess Nottingham. She the daughter of Richard Fitzalan 9th Earl Surrey 11th Earl Arundel (age 39) and Elizabeth Bohun Countess Arundel and Surrey. They were second cousins. He a great x 2 grandson of King Edward "Longshanks" I of England. She a great x 2 granddaughter of King Edward "Longshanks" I of England.

Before 20 Jul 1399 Thomas Dacre 6th Baron Dacre Gilsland (age 11) and [his future sister-in-law] Philippa Neville Baroness Dacre Gilsland (age 13) were married. She by marriage Baroness Dacre Gilsland. She the daughter of Ralph Neville 1st Earl of Westmoreland (age 35) and Margaret Stafford Baroness Neville Raby. She a great x 4 granddaughter of King Edward "Longshanks" I of England.

Before Aug 1401 Robert Goushill and [his mother] Elizabeth Fitzalan Duchess Norfolk (age 35) were married. She the daughter of Richard Fitzalan 9th Earl Surrey 11th Earl Arundel and Elizabeth Bohun Countess Arundel and Surrey. She a great x 2 granddaughter of King Edward "Longshanks" I of England.

Before 04 Apr 1406 [his future brother-in-law] John Neville (age 19) and Elizabeth Holland were married. She the daughter of Thomas Holland 2nd Earl Kent and Alice Fitzalan Countess Kent (age 56). He the son of Ralph Neville 1st Earl of Westmoreland (age 42) and Margaret Stafford Baroness Neville Raby. They were third cousin once removed. He a great x 4 grandson of King Edward "Longshanks" I of England. She a great x 2 granddaughter of King Edward "Longshanks" I of England.

On 28 Oct 1407 John Greystoke 4th Baron Greystoke (age 18) and [his future sister-in-law] Elizabeth Ferrers Baroness Greystoke (age 14) were married at Greystoke Castle, Cumberland. She by marriage Baroness Greystoke. She the daughter of Robert Ferrers and Joan Beaufort Countess of Westmoreland (age 28). She a great granddaughter of King Edward III of England.

On 12 Jan 1412 John Mowbray 2nd Duke of Norfolk (age 20) and Katherine Neville Duchess Norfolk (age 12) were married. She the daughter of Ralph Neville 1st Earl of Westmoreland (age 48) and Joan Beaufort Countess of Westmoreland (age 33). He the son of Thomas Mowbray 1st Duke of Norfolk and Elizabeth Fitzalan Duchess Norfolk (age 46). They were fourth cousins. He a great x 3 grandson of King Edward "Longshanks" I of England. She a great granddaughter of King Edward III of England.

Before 06 Sep 1415 Piers Mauley 5th Baron de Mauley (age 38) and [his sister-in-law] Maud Neville Baroness Haversham (age 32) were married. She by marriage Baroness Haversham. She the daughter of Ralph Neville 1st Earl of Westmoreland (age 51) and Margaret Stafford Baroness Neville Raby. They were third cousins. She a great x 4 granddaughter of King Edward "Longshanks" I of England.

In or before 1416 [his brother-in-law] Ralph Neville (age 24) and [his sister-in-law] Mary or Margery Ferrers (age 21) were married. She the daughter of Robert Ferrers and Joan Beaufort Countess of Westmoreland (age 36). He the son of Ralph Neville 1st Earl of Westmoreland (age 51) and Margaret Stafford Baroness Neville Raby. 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.

BeforeOn 04 Jun 1418 Richard Scrope 3rd Baron Scrope of Bolton (age 25) and [his sister-in-law] Margaret Neville Baroness Scrope Bolton were married. She the daughter of Ralph Neville 1st Earl of Westmoreland (age 54) and Margaret Stafford Baroness Neville Raby. They were fourth cousins. She a great x 4 granddaughter of King Edward "Longshanks" I of England.

Before 1437 Thomas Strangeways (age 42) and [his former wife] Katherine Neville Duchess Norfolk (age 36) were married. She the daughter of Ralph Neville 1st Earl of Westmoreland and Joan Beaufort Countess of Westmoreland (age 57). She a great granddaughter of King Edward III of England.

In Oct 1441 John Beaumont 1st Viscount Beaumont (age 32) and [his former wife] Katherine Neville Duchess Norfolk (age 41) were married. She by marriage Viscountess Beaumont. She the daughter of Ralph Neville 1st Earl of Westmoreland and Joan Beaufort Countess of Westmoreland. They were fourth cousins. He a great x 5 grandson of King Henry III of England. She a great granddaughter of King Edward III of England.