He also appointed the twenty-four assistants, all citizens of London.

He invested the society with full power 'to send orders and directions from, this kingdom of England into the said realm of Ireland, by letters or otherwise, for the ordering, directing, and disposing of all and all manner of matters and things whatsoever of and concerning the same plantation, or the disposition or government thereof.

The grant of property was most comprehensive:-- 'We also will, and, by these presents for us, our heirs and successors, do give, grant, and confirm to the said society of the governor and assistants [London] of the new plantation in Ulster within the realm of Ireland, and their successors: 'All that the city, fort, and town of Derry, and all edifices and structures thereof, with the appurtenances, in the county of the city of Derry aforesaid, in the province of Ulster, in our realm of Ireland; and also the whole island of Derry, with the appurtenances, and all lands and the whole ground within the island of Derry aforesaid, in the said county of the city of Derry, otherwise Londonderry, within the province of Ulster, in our aforesaid realm of Ireland.

And also all those lands next adjacent to the said city or town of Derry, lying and being on or towards the west part of the river of Loughfoyle, containing by estimation four thousand acres, besides bog and barren mountains, which said bog and barren mountains may be had and used as waste to the same city belonging.

And also all that portion and proportion of land by the general survey of all the lands in the aforesaid late county of Coleraine, now Londonderry, heretofore taken, called the great proportion of Boughtbegg, lying and being in the barony or precinct of Coleraine, now Londonderry, within the province of Ulster aforesaid, in our said realm of Ireland; that is to say, all lands, tenements, and other hereditaments, called and known by the names, and situate, lying, and being in or within the several towns, villages, hamlets, places, balliboes, or parcels of land following, that is to say: Hacketbegg, being two balliboes of land; Aglakightagh, being two balliboes of land; Altybryan, being one balliboe of land; Bratbooly, being one balliboe of land; Hackmoore, being one balliboe of land; Tirecurrin, being one balliboe of land; Edermale, being one balliboe of land; Lennagorran, being one balliboe of land; Knockmult, being one balliboe of land; Boughtmore, being one balliboe of land; Boughtbegg, being one balliboe of land, &c.
'We will also, and by these presents for us, our heirs and successors, do grant and confirm to the said society of the governor and assistants [London] of the new plantation in Ulster, and their successors, that they and their successors, and also all their assigns, deputies, ministers, and servants shall and may have full liberty of fishing, hawking, and fowling in all the places, tenements, shores, and coasts aforesaid, at their will and pleasure.
'And that it shall and may be lawful to and for them and every of them to draw and dry their nets, and pack the fishes there taken upon any part of the shores and coasts aforesaid where they shall fish; and the salmons and other fishes there taken to take thence and carry away without any impediment, contradiction, or molestation of us or others whomsoever, wheresoever it shall happen to be done.
'And that in like manner they may have the several fishings and fowlings within the city of Londonderry aforesaid, and in all lands and tenements before mentioned to be granted and confirmed to the said society of the governor and assistants [London] of the new plantation in Ulster and their successors, and in the river and water of Loughfoile, to the ebb of the sea, and in the river or water of Bann to Loughneagh.' The grants were made without any reservation in favour of the tenants or the old inhabitants, saving some portions of land given by letters patent by his grandfather to 'certain _Irish gentlemen_ in the said county of Londonderry, heretofore inhabiting and residing, and who were heretofore made freeholders, and their successors, under a small yearly rent,' which was to be paid to the Irish Society.