The concept of "land ownership" was brought here by England. Under English Law, discoveries were made in the name of the sovereign and all lands belonged to the Monarch, to be disposed of by the Crown. Royal favorites (Penn) recieved territories to be parceled out as they saw fit. The territory Penn colonized was, as far as the Monarch saw, owened and controled by the Monarch. The Indians did not have any land to sell Penn or his coloneys because the Indians did not hold the concept of land ownership as Europeans did. The Indians had no traditions of alienating or relinquishing all or any rights to land. Many Europeans thought that this showed Indian social development to be more primative than that of the Europeans. There for, they took it. Even though Penn may of maintained friendly relations with them, he didn't purchase any land from the Indians.