At Berlin, he found a wider field for his abilities. He acted as representative of his exiled king in the negotiations with the Prussian government concerning his private property, and opposed the sequestration, and for the first time was placed in a position of hostility to Otto von Bismarck. He was recognized as the leader of the Hanoverians and of all those above who opposed the revolution. He took a leading part in the formation of the party of the Center in 1870–1871, but he did not become a member of it, for he feared that his reputation as a follower of the king of Hanover would injure the party; that is, until the leaders formally requested that he join them.