Complex sentence: She was married to the literary and theatrical critic John Gross (1965-88), the couple had two children Tom Gross and Susanna Gross and since 1993 has been married to Sir Geoffrey Owen, the former editor of "The Financial Times".
Split into simpler sentences: She was married to the literary and theatrical critic John Gross (1965-88). Since 1993, she has been married to Sir Geoffrey Owen, the former editor of "The Financial Times".