Hugh de Courtenay, 2nd Earl of Devon was invested as a Knight Banneret in 1327. He fought in the Scottish Wars. He fought in the French Wars. He succeeded to the title of 2nd Lord Courtenay [E., 1299] on 23 April 1337, in his father's lifetime. In 1339 he repulsed a French descent on Cornwall. He succeeded to the title of 2nd Earl of Devon [E., 1335] on 23 December 1340. He held the office of Joint Warden of Devon and Cornwall in 1352. He held the office of Chief Warden of Devon in 1373.
He was made a founding and 12th Knight of the Order of the Garter in 1348 on its investiture at Windsor Castle.

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Hugh de Courtenay, 2nd Earl of Devon was born on 12 July 1303. He was the son of Hugh de Courtenay, 1st Earl of Devon and Agnes de St. John. He married Margaret de Bohun, daughter of Humphrey de Bohun, 4th Earl of Hereford and Lady Elizabeth Plantagenet, on 11 August 1325.2 He died on 2 May 1377 at age 73.
He was appointed Knight Banneret in 1327. He fought in the Scottish Wars.2 He fought in the French Wars. He succeeded as the 2nd Lord Courtenay [E., 1299] on 23 April 1337, in his father's lifetime. In 1339 he repulsed a French descent on Cornwall. He succeeded as the 2nd Earl of Devon [E., 1335] on 23 December 1340.2 He held the office of Joint Warden of Devon and Cornwall in 1352.2 He held the office of Chief Warden of Devon in 1373.