Before 3 September 1341 she married Sir Hugh Courtenay (died c. 1348), the eldest son of Hugh Courtenay, 10th Earl of Devon (12 July 1303 – 2 May 1377), and Margaret de Bohun (d. 16 December 1391), daughter of Humphrey Bohun, Earl of Hereford and Essex (c.1276 – 16 March 1322), by Elizabeth (d. 5 May 1316), the daughter of King Edward I.

[2][3] They had one son, Sir Hugh Courtenay, who died without issue on 20 February 1374.

[2][1] Sir Hugh Courtenay died shortly after Easter term 1348,[1] and was buried at Ford Abbey, Somerset.

[2][1] While on progress through Dorset, Queen Philippa is said to have 'placed a piece of cloth of gold as an oblation on his tomb' on 2 September 1349.

Not long after the marriage she and her new husband surrendered themselves to the Fleet prison for debt.