Complex sentence: He gained notoriety for his violently anti-Semitic speeches, attacking the prime-minister Stolypin, industrialists, local politicians and was prohibited to preach by the Most Holy Synod.
Split into simpler sentences: He gained notoriety for his violently anti-Semitic speeches, but also attacking the prime-minister Stolypin, industrialists, and local politicians. Then he was prohibited to preach by the Most Holy Synod.