... [William de Arcis] had a second daughter, Emma, who married, first, Nigel de Monville, and secondly Manasses, Count of Guines, and that on the decease of William de Arcis, early in the reign of William Rufus, the honour of Folkstone, with all the lands of his fief in England, became the inheritance of Emma and her issue, whilst the Norman barony devolved on her sister, Matildis, and her descendants.
In the year 1095, Nigel de Munevilla and his wife Emma, with consent of Archbishop Anselm, founded the Priory of Folkstone, as a cell to the Abbey of Lonlay in Normandy. At the period of the death of Rufus, A.D. 1100, Nigel was living ; the precise time of his decease has not been ascertained, but in the brief addressed by Henry I to the Bishop of Thetford (Herbert de Lozinga, 1091-1119), respecting the grant by Emma to the nuns of Radyngfield, she is styled "Comitissa de Gennes." ...
... The manor of Newington had been comprised in the dower of Beatrix, wife of William de Arcis, a portion of whose lands, as it would appear, remained, after the death of Nigel de Munevilla, with Emma his relict, and in her right were held by her second husband during the reign of Henry I. The castle Folkstone, and the daughter and heiress of Nigel, as a ward of the King, were kept in his custody. ...
