Nothing herein contained shall extend or be construed to alter or abridge the Right Honorable John Lord Carteret, his heirs, executors, administrators or assigns, or the lords proprietors or their heirs of any estate, right, title or interest whatsoever which have or has been saved and reserved unto said John Lord Carteret, or to the late lords proprietors, or any of them, in and by the act entitled "An Act for Establishing an Agreement with Seven of the lords proprietors of Carolina, for the Surrender of their Title and Interest in that Province to his Majesty"; nor to revive or enlarge any estate or right or interest whatsoever in the lords proprietors, or any of them, their or any of their heirs, of, in and to the estates aforesaid, or any part thereof, which they or any of them have granted and conveyed as aforesaid, to any person or persons whatsoever, or which they have surrendered by virtue of the aforesaid act.