Complex sentence: Alice of Hainault, Countess Marshal (d.26 October 1317), was a noblewoman, the daughter of John de Avenes, Count of Hainault, and the wife of Roger Bigod, 5th Earl of Norfolk, Earl Marshal.
Split into simpler sentences: Alice of Hainault, Countess Marshal (d.26 October 1317), was a noblewoman, the daughter of John de Avenes, Count of Hainault. She was the wife of Roger Bigod, 5th Earl of Norfolk, Earl Marshal.