Primary Sources

The Inquisitions Post Mortem held in 1298 for his father state "Robert his son, aged 19 at the feast of St. Barnabas last [b. 11 Jun 1279], is his next heir."

Inquisitions Post Mortem for Robert de Ufford, Writ 9 September, 10 Edward II [1316].
His death date is not recorded. He died before 9 September 1316 (date of writ).
Robert his son, aged 18 on the eve of St. Lawrence last, is his next heir.

Other Sources

Robert and Cecily had 6 sons and 1 daughter.

The son Edmund married Elizabeth and had no children.

Genealogical Memoirs of the Extinct Family of Chester of Chicheley: Their Ancestors and Descendants, Volume 1 (Google eBook) Robert Edmond Chester Waters Robson & sons, 1878. Page 329

MedLands

ROBERT de Ufford, son of --- (-before 9 Sep 1298). He had interests in Ufford, Suffolk[269].

m firstly (before 12 May 1273) as her second husband, MARY, widow of WILLIAM de Say, daughter of --- (-after 10 Aug 1280).

m secondly (before [1286/87]) JOAN, daughter of --- (-after 18 Nov 1307).

Robert de Ufford & his first wife had --- children:

1. ROBERT de Ufford (11 Jun 1279-9 Sep 1316 or before). He was summoned to parliament 4 Mar 1309, whereby he is held to have become Lord Ufford. m (before 1298) CECILY de Valognes, daughter of ROBERT de Valognes & his wife Eve Tregoz née --- ([1280/81]-16 Jul 1325). Robert & his wife had three children:

a) WILLIAM de Ufford (-[1311/9 Sep 1316).

b) ROBERT de Ufford (9 Aug 1298-4 Nov 1369). He succeeded his father in 1316 as Lord Ufford. He was created Earl of Suffolk 16 Mar 1337.

c) Sir RALPH de Ufford (-Kilmainham, Ireland 9 Apr 1346, bur Campsey Abbey, Suffolk). Chief Justice of Ireland 1344. m [firstly] (before 8 Aug 1343) as her second husband, MAUD de Lancaster, widow of WILLIAM de Burgh 3rd Earl of Ulster, daughter of HENRY Earl of Lancaster & his wife Maud Chaworth ([1310]-[Bruisyard Abbey, Suffolk] 5 May 1377, bur Campsey Abbey, Suffolk). She fled to England with her daughter after the murder of her first husband. She became a canoness at the Augustine Abbey of Campsey, Suffolk, [8 Aug 1347/25 Apr 1348]. She transferred to the Poor Clares at Bruisyard Abbey, Suffolk 1364. [m secondly EVE de Clavering, daughter of ---. According to Burke's Dormant and Extinct Peerages[270], he married secondly Eve de Clavering and had issue by her. However, his wife Maud was clearly still alive at the time. No reference has been found to his having divorced Maud.] Sir Ralph & his wife had one child:

i) MAUD (-[Great Bentley] 25 Jan 1413, bur Bruisyard, Suffolk). She took part in the 1404 conspiracy in Essex against King Henry IV and was put in the Tower, but pardoned 16 Nov 1404[271]. m (before 10 Jun 1350) THOMAS de Vere, son of JOHN de Vere Earl of Oxford & his wife Maud de Badlesmere ([1336/37]-Great Bentley, Essex [12/18] Sep 1371, bur Earl's Colne). He succeeded his father in 1360 as Earl of Oxford.
www.findagrave.com

Sir Robert De Peyton De Ufford BIRTH 1234 Suffolk, England DEATH 9 Sep 1298 (aged 63–64) Norfolk, England BURIAL Black Friars Priory Dunwich, Suffolk Coastal District, Suffolk, England MEMORIAL ID 123825571

Born around 1234 in Peyton Hall, Ramshold, Suffolk, England.

Day of death is not known with 100% certainty, but he passed away in September 1298.

Lord Ufford

Son of John de Peyton of Ufford, husband of Mary and father of Robert de Ufford. Husband of Joan and father of Sir Thomas Ufford.

Family Members Spouse Joan de Ufford

Children Thomas de Ufford unknown–1314