A richly endowed Abbey

From Herluin:
Thirty acres at Grestain (the enclosure of the Abbey), The coastline kept by the fishermen of the Free-Table of Grestain, the woods of Normare and Fiquefleur, the mills outside of Sainte-Mère-Eglise (Notre-Dame du Val), Carbec, one hundred thirty acres at Foulbec, Vauville, Martainville, Bretteville l’Orgueilleuse, Munneville sur mer, Tilly sur Seulle, Sainte Scolasse, and at the Marais Vernier.

From Robert de Mortain:
Maritime rights from the nets of Quillebeuf to Noirport, customs, tides, kelp, fishing, ownership of all the sturgeon, first salmon and lamprey in the river, and all of the land and gravel covered by the tide beside Jobles, Fiquefleur, Cremanfleur and Honfleur.

From Mathilde de Montgomery (wife of Robert de Mortain) and their son Guillaume de Mortain:
A house in London, twenty nine properties in Dorset, Sussex, Worchester, Northampton, Buckinghamshire, Hertfordshire and Cornwall, the manor house at Grafton (anciently spelt Grastone), and the patronage of ten churches.

By the end of the 12th century, the abbey owned seven manor houses, twelve churches, including St. Leonard in Honfleur, one priory, three estates and several parishes making up a domain of 5’830 hectares.
(ca 14’400 acres)