Baron Badlesmere was a title in the Peerage of England.
On 26 October 1309 Bartholomew Badlesmere, Governor of Bristol Castle, was summoned to Parliament, regarded as a barony by writ. In 1322, he was attainted and executed for joining the rebellion of the Earl of Lancaster, and the barony was forfeited. In 1328, the attainder was reversed for his only son, Giles Badlesmere, who became the second and last baron. On his death in 1338 without a son, the barony lapsed.
Theoretically, the title remains "abeyant" between the descendants of his four sisters.[1]