Complex sentence: In the 1860 Republican National Convention, Schurz was spokesman of the delegation from Wisconsin, which voted for William H. Seward; despite this, Schurz was on the committee which brought Lincoln the news of his nomination.
Split into simpler sentences: In the 1860 Republican National Convention, Schurz was spokesman of the delegation from Wisconsin, which voted for William H. Seward. Despite this, Schurz was on the committee which brought Lincoln the news of his nomination.