In his youth he had been pro-Polish, and had even supported Napoleon's invasion of Austria-Hungary, before later in his life becoming very hostile to Polish interests and an ardent supporter of Russophilism.
He had been pro-Polish. This was in his youth. This was before later. He had even supported Napoleon's invasion of Austria-Hungary in his life. This was in his youth. This was before later. This life was becoming very hostile to Polish interests. This life was becoming very hostile to an ardent supporter of Russophilism.