Complex sentence: Following a break with his family in the more peaceful Simeiz, Crimea in August, Rachmaninoff performed at a concert the following month at Yalta, which turned out to be his final performance in Russia.
Split into simpler sentences: Following a break spent with his family in the more peaceful Simeiz, Crimea, in August, Rachmaninoff performed at a concert the following month at Yalta. It turned out to be his final performance in Russia.