Complex sentence: However, the exact nature of her relationship with Vaudreuil has been questioned by some historians, who feel it was almost certainly not a sexual liaison-this theory has recently been resurrected by Catholic novelist and commentator, Elena Maria Vidal.
Split into simpler sentences: However, the exact nature of Gabrielle's relationship with Vaudreuil has been debated by some historians, some feeling it was almost certainly not a sexual liaison. This theory has recently been resurrected by Catholic novelist and commentator, Elena Maria Vidal.