Maud was born at Castle Badlesmere, Kent, England in 1310, the second eldest daughter of Bartholomew de Badlesmere, 1st Baron Badlesmere and Margaret de Clare. She had three sisters, Margery, Elizabeth, and Margaret; all of whom eventually married and had issue. She had one brother, Giles. Her paternal grandparents were Guncelin de Badlesmere and Joan FitzBernard, and her maternal grandparents were Thomas de Clare, Lord of Thomond and Juliana FitzGerald of Offaly. On 14 April 1322, when she was twelve years of age, Maud's father was hanged, drawn and quartered by orders of King Edward II, following his participation in the Earl of Lancaster's rebellion and his subsequent capture after the Battle of Boroughbridge. Maud, her siblings, and her mother had been arrested the previous October after the latter had ordered an assault upon Queen consort Isabella after refusing her admittance to Leeds Castle where Baron Badlesmere held the post of governor. Maud's mother, Baroness Badlesmere, remained imprisoned in the Tower of London until 3 November 1322, although it is not known when Maud and her siblings were released. Her brother Giles obtained a reversal of their father's attainder in 1328, and he succeeded to the barony as 2nd Baron Badlesmere. Maud, along with her three sisters, was Giles's co-heiress, as he had married but fathered no children by his wife, Elizabeth Montagu.
Marriages and issue
In June 1316, Maud, aged six, married her first husband, Robert FitzPayn, son of Robert FitzPayn. Welsh historian R. R. Davies relates in his book, Lords and lordship in the British Isles in the late Middle Ages how her father, Lord Badlesmere, when drawing up the marriage contract, sought to provide for Maud's future by ensuring that she would have independent means. He granted her land worth 200 marks per year, and her future father-in-law was constrained to endow her with three manors and their revenues. The marriage did not produce children; and on an unknown date sometime before March 1335 Maud married secondly, John de Vere, 7th Earl of Oxford. Upon her marriage, Maud assumed the title Countess of Oxford. John was a captain in King Edward III's army, and as such participated in the Battle of Crécy and the Battle of Poitiers. The marriage produced seven children:
John de Vere, married Elizabeth de Courtney as her first husband.
Elizabeth de Vere, married firstly in 1341, Sir Hugh de Courtney, by whom she had one son, Hugh de Courtney, Lord Courtney; she married secondly John de Mowbray, 3rd Lord Mowbray; she married thirdly on 18 January 1369 Sir William Costyn
In June 1338, Maud's brother Giles died without leaving any legitimate issue. A considerable portion of the Badlesmere estates was inherited by Maud and her husband. Maud died at the de Vere family mansion Hall Place in Earls Colne, Essex in May 1366 at the age of fifty-six years. Evidence given at the various inquisitions post mortem held after her death differ as to whether she died on the 19th, 23rd or 24th day of the month. This source gives details of her numerous properties which were to be found in Essex and six other counties. Maud was buried in Colne Priory. Her husband had died in 1360.
