Complex sentence: Born in London, Lambert was educated at Roedean School, which she left at the age of sixteen and then studied for a year at the Sorbonne in Paris, followed by eighteen months at a secretarial college in London.
Split into simpler sentences: Born in London, Lambert was educated at Roedean School, which she left at the age of sixteen. She then studied for a year at the Sorbonne in Paris, followed by eighteen months at a secretarial college in London.