N.N. Devereux

Please see the Wikipedia article covering William Devereux: https://en.wikipedia.org/wiki/William_Devereux_(1219%E2%80%931265). The article cites the first wife of this William Devereux as an unknown daughter of Hugh Bigod, 3rd Earl of Norfolk, and Maud Marshal.

That article cites the Welsh Assize Rolls, 1277-1284, which indicates that "Pleas at Montgomery before Walter de Hopton and his Fellows, A Fortnight from St. Hilary, 10 Edward I" and "William, son of William Devereux, claims against Roger Bigod, Earl of Norfolk, Marshal of England, half of one knight’s fee in Runston and the vill of St. Petr in Netherwent as his right, whereof he says William Devereux, his father, was seised in the time of King Henry III. From William the right descended to William who now claims, as son and heir. And into which as the Earl did not have entry, except by the disseisin, which Roger Bigod, his uncle, did therein to William Devereux, the father of William who now claims. And he asks that inquiry be made thereon. And on this comes the Earl’s bailiff and asks for his lord’s court, because the tenement claimed is within his lord’s liberty of Netherwent. Therefore a day is given them here in a fortnight from Easter to do,etc."

As the 10th of Edward I would be c. 1281, we must look at Roger Bigod, 5th Earl of Norfolk, son of Hugh Bigod, and nephew of Roger Bigod, 4th Earl of Norfolk, who became Earl in 1270. However, the case involves property taken from this William Devereux's father, William, who died at the Battle of Evesham in 1265, during the period when the 4th Earl of Norfolk was ensconced. He must be the Roger Bigod that the younger William Devereux claims as his uncle.

Medlands does not include a daughter of Hugh Bigod who was married to William Devereux, although it is possible that she was a product of a relationship outside Hugh Bigod's marriage to Maud Marshal. (Steven Ferry, January 3, 2022.)