Complex sentence: Sir George Clausen RA (1852--1944), English painter, was born in London, the son of a decorative artist, he attended the design classes at the South Kensington schools from 1867-1873 with great success.
Split into simpler sentences: Sir George Clausen RA (1852--1944), English painter, was born in London, the son of a decorative artist. He attended the design classes at the South Kensington schools from 1867-1873 with great success.