Martin De La See was the son of Brian De La See, by Maud, daughter and heiress of John Monceaux. He married (1st) Margaret Spencer, daughter and heiress of Christopher Spencer, by whom they had one daughter, Margaret. He married (2nd) Elizabeth, daughter of Philip Wentworth

Philip Wentworth

Sir Philip Wentworth, Knight, of Nettlestead, Suffolk was an English knight.He was Usher of the King's Chamber, King's Sergeant, Esquire of the Body, King's Carver, Sheriff of Norfolk and Suffolk, Knight of the Shire for Suffolk, Constable of Llanstephen and Clare Castles, Chief Steward of the...

, Knight, of Nettlestead, Suffolk

Suffolk

Suffolk is a non-metropolitan county of historic origin in East Anglia, England. It has borders with Norfolk to the north, Cambridgeshire to the west and Essex to the south. The North Sea lies to the east...

, by Mary Clifford, daughter of John De Clifford

John Clifford, 7th Baron de Clifford

Sir John Clifford, 7th Baron de Clifford, also 7th Lord of Skipton, KG , hereditary High Sheriff of Westmorland was an English peer.-Life:...

. He married (3rd) before 20 Nov 1494, Margery_____.

From Douglas Richardson's Plantagenet Ancestry:

He headed the local resistance to King 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...

's landing at Ravenspur in March 1471. He was knighted after the successful siege of Edrington

Edrington

Edrington is a medieval estate occupying the lower part of Mordington parish in Berwickshire, Scottish Borders, Scotland, five miles west of Berwick-upon-Tweed. From probably the 14th century, if not earlier, a castle occupied the steep hill above the mill of the same name on the Whiteadder Water...

 Castle, Scotland

Scotland

Scotland is a country that is part of the United Kingdom. Occupying the northern third of the island of Great Britain, it shares a border with England to the south and is bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the...

 by Henry Percy, 4th Earl of Northumberland

Henry Percy, 4th Earl of Northumberland

Henry Percy, 4th Earl of Northumberland, KG son of Henry Percy, 3rd Earl of Northumberland and his wife Eleanor Poynings, daughter of Richard Poynings, Lord Poynings....

 on 24 July 1482, and served on eight consecutive commissions of the peace for the East Riding from 18 Sep 1484 to 14 Jul 1494.

Martin De La See died between 20 Nov and 15 Dec 1494 and was buried in the choir in All Hallows', Barmston, East Riding of Yorkshire, with effigy.

Issue

Martin and Elizabeth had 2 children:

Name	Notes
Joan De La See	m. Peter Hildyard, Esq., of Winestead, Yorkshire Yorkshire Yorkshire is a historic county of northern England and the largest in the United Kingdom. Because of its great size in comparison to other English counties, functions have been increasingly undertaken over time by its subdivisions, which have also been subject to periodic reform...  son of Robert Hildyard and Elizabeth Hastings. Elizabeth was the granddaughter of Thomas de Morley, 5th Baron Morley Thomas de Morley, 5th Baron Morley Thomas de Morley, 5th Baron Morley was a baron in the Peerage of England, Lord of Morley, Hingham, Hockering, &c., in Norfolk, de jure Lord Marshall, hereditary Marshal of Ireland, and a Privy Councillor. He was the son of Sir Robert de Morley, Knt...  and great-granddaughter of Michael de la Pole, 3rd Earl of Suffolk Michael de la Pole, 3rd Earl of Suffolk Michael de la Pole, 3rd Earl of Suffolk was an English nobleman, the eldest son of Michael de la Pole, 2nd Earl of Suffolk and Katherine de Stafford.... , through her mother Ann.
Elizabeth De La See	m. Roger Kelke, of Barnetby le Wold, Lincolnshire Lincolnshire Lincolnshire is a county in the east of England. It borders Norfolk to the south east, Cambridgeshire to the south, Rutland to the south west, Leicestershire and Nottinghamshire to the west, South Yorkshire to the north west, and the East Riding of Yorkshire to the north. It also borders... . Had issue.