Elizabeth de Bohun

Lady Elizabeth de Bohun, Countess of Arundel, Countess of Surrey was a member of the AngloNorman Bohun family, which wielded much power in the Welsh Marches and the English government. She was the first wife of Richard FitzAlan, a powerful English nobleman and military commander in the reigns of Edward III and Richard II. She was the mother of seven of his children, and as the wife of one of the most powerful nobles in the realm, enjoyed much prestige and took precedence over most of the other peers wives.

Lady Elizabeth de Bohun was born around 1350, the daughter of William de Bohun, 1st Earl of Northampton and Elizabeth de Badlesmere. Her older brother Humphrey de Bohun, 7th Earl of Hereford married Joan FitzAlan, a sister of the 11th Earl of Arundel, by whom he had two daughters. Elizabeth had a halfbrother, Roger Mortimer, 2nd Earl of March, by her mothers first marriage to Sir Edmund Mortimer.

Source: Wikipedia