Bartholomew de Badlesmere
- Born: 1275, Chilham, Kent, England
- Christened: Also of Castle, Badlesmere, Kent, England
- Marriage: Margaret de Clare about 1305 in Castle, Badlesmere, Kent, England
- Died: 14 Apr 1322, Canterbury, Kent, England at age 47
Steward of the King's Household. Ambassador, to France, Savoy, and the Vatican. Bartholomew, 1st Lord Badlesmere was son and heir of Guncelin of Badlesmere, Justice of Chester, by Joan, daughter of Ralph Fitz Bernard.
He was of Badlesmere and Chilham Castle in Kent, England. He was born in 1275 in Chilham Castle, Kent, England. He was the son of Sir Guncelin de Badlesmere and Joan FitzBernard. He attended the war in Gascony in 1294 in 22 Edward I, France. He succeeded his father in 1301. He was in the Scottish Wars between 1303 and 1304.
Governor of Bristol Castle in 1307. He married Margaret de Clare of Thomond, daughter of Thomas de Clare, Lord of Thomond and Juliana fitz Maurice, before 30 June 1308 in Kent, England; Her 2nd (widow). He was summoned to Parliament as 1st Lord Badlesmere by Edward II in 1309.
He had a grant of the Castle and Manor of Chilham in 1309 in Kent, England. He was summoned to Parliament by writs directed to Bartholmew de Badlesmere, whereby he may be held to have become Lord Badlesmere, between 26 October 1309 and 15 May 1321.
He obtained a grant of the Castle of Leeds before 1314/15 in Kent. He was made Governor of Skipton Castle, and of all the castles in Yorkshire and Westmorland, whereof Robert de Clifford had d. seized in 1314/15. He joined the Earl of Lancaster in his rebellion, notwithstanding the many favours he had received, and was defeated with him at Boroughbridge on 16 March 1322. He was captured at Stow Park, and attained after 16 March 1322. He died on 14 April 1322 in Canterbury, Kent, England, at age 47 years. He was hanged, drawn & quartered, and had his head impaled on the then Burgate Wall for his part in the rebellion.
Bartholomew married Margaret de Clare, daughter of Thomas de Clare Lord of Thomond and Juliana Fitzmaurice, about 1305 in Castle, Badlesmere, Kent, England. (Margaret de Clare was born between 1280 and 1286 in County Clare, Thomond, Munster, Ireland and died in 1333 in Castle, Badlesmere, Kent, England.)