Martha of Armagnac was the youngest child of John I, Count of Armagnac, and his second wife Beatrice of Clermont. She was the first wife of John I of Aragon but never became Queen of Aragon because she was outlived by her father-in-law Peter IV of Aragon.
- Occupation
- aristocrat
- Born
- 1347, February 18, 1347
- Died
- October 23, 1378