Complex sentence: Her mother, Pilia, was a descendant of Marcus Licinius Crassus.Atticus and Pilia were married in 56 BC, when Atticus was already 53 years old.
Split into simpler sentences: Her mother, Pilia, was a descendant of Marcus Licinius Crassus. Titus Pomponius Atticus and Pilia were married in 56 BC, when Atticus was already 53 years old.