 Those Alien Priories that had functioning communities were forced to pay large sums to the king, while those that were mere estates were confiscated and run by royal officers, the proceeds going to the king's pocket.Such estates were a valuable source of income for the Crown in its French wars.Most of the larger Alien Priories were allowed to become naturalised (for instance Castle Acre Priory), on payment of heavy fines and bribes, but for around ninety smaller houses and granges, their fates were sealed when Henry V dissolved them by act of Parliament in 1414.