Complex sentence: His son Robert Edward John Compton, born in 1922 and (known as Robin) was chairman of Time-Life International for many years and took over the running of Newby Hall in 1960.
Split into simpler sentences: His son Robert Edward John (Robin) Compton, born in 1922, was chairman of Time-Life International for many years. He took over the running of Newby Hall in 1960.