Complex sentence: Her mother, Deborah (née Hurlbatt), was brought up in Hong Kong and Africa, and studied drama before marrying her father, Lieutenant Commander Simon Scott Thomas, a pilot in the Royal Navy who died in a flying accident in 1964.
Split into simpler sentences: Her mother, Deborah (née Hurlbatt), was brought up in Hong Kong and Africa, and studied drama before marrying Scott Thomas' father. Her father, Lieutenant Commander Simon Scott Thomas, was a pilot for the Royal Navy who died in a flying accident in 1964.