Complex sentence: Unlike many other Russian nobles, the Bobrinskys continued as prosperous businessmen after the 1861 emancipation of serfs, starting coal-mining in their estates near Tula and helping to build railways all over Russia.
Split into simpler sentences: Unlike many other Russian nobles, the Bobrinskys continued as prosperous businessmen after the emancipation of serfs in 1861. They started coal-mining in their estates near Tula and helped to build railways all over Russia.